www.duolingo.com Open in urlscan Pro
52.1.85.20 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
http://duolingo.com/
Effective URL:
https://www.duolingo.com/
Submission Tags: falconsandbox
Submission: On July 30 via api (July 30th 2021, 2:40:55 am UTC) from US

Summary HTTP 102 Redirects Links 47 Behaviour Indicators

Summary

This website contacted 24 IPs in 4 countries across 17 domains to perform 102 HTTP transactions. The main IP is 52.1.85.20, located in Ashburn, United States and belongs to AMAZON-AES, US. The main domain is www.duolingo.com.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on November 19th 2020. Valid for: a year.

This is the only time www.duolingo.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1 1	184.72.124.184 184.72.124.184	14618 (AMAZON-AES) (AMAZON-AES)
5	52.1.85.20 52.1.85.20	14618 (AMAZON-AES) (AMAZON-AES)
5	2606:4700::68... 2606:4700::6810:9540	13335 (CLOUDFLAR...) (CLOUDFLARENET)
44	2600:9000:21f... 2600:9000:21f3:ac00:7:60cd:e840:21	16509 (AMAZON-02) (AMAZON-02)
1	2606:4700:10:... 2606:4700:10::6814:b844	13335 (CLOUDFLAR...) (CLOUDFLARENET)
14	54.175.79.116 54.175.79.116	14618 (AMAZON-AES) (AMAZON-AES)
1	2a00:1450:400... 2a00:1450:4001:82b::2008	15169 (GOOGLE) (GOOGLE)
1	44.195.198.174 44.195.198.174	14618 (AMAZON-AES) (AMAZON-AES)
1	151.101.13.40 151.101.13.40	54113 (FASTLY) (FASTLY)
1	13.224.193.74 13.224.193.74	16509 (AMAZON-02) (AMAZON-02)
2	2a00:1450:400... 2a00:1450:4001:80f::200e	15169 (GOOGLE) (GOOGLE)
1 4	216.58.212.166 216.58.212.166	15169 (GOOGLE) (GOOGLE)
2	142.250.186.66 142.250.186.66	15169 (GOOGLE) (GOOGLE)
4	2a03:2880:f02... 2a03:2880:f02d:100:face:b00c:0:3	32934 (FACEBOOK) (FACEBOOK)
2	52.17.137.202 52.17.137.202	16509 (AMAZON-02) (AMAZON-02)
1	2a00:1450:400... 2a00:1450:4001:82f::2004	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:400c:c06::9b	15169 (GOOGLE) (GOOGLE)
3	2a03:2880:f12... 2a03:2880:f12d:181:face:b00c:0:25de	32934 (FACEBOOK) (FACEBOOK)
1 2	2a00:1450:400... 2a00:1450:4001:828::2004	15169 (GOOGLE) (GOOGLE)
2	2a00:1450:400... 2a00:1450:4001:80e::2003	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:830::2002	15169 (GOOGLE) (GOOGLE)
1 1	2a00:1450:400... 2a00:1450:4001:82b::2002	15169 (GOOGLE) (GOOGLE)
1 1	2a00:1450:400... 2a00:1450:4001:829::2002	15169 (GOOGLE) (GOOGLE)
1	34.255.138.57 34.255.138.57	16509 (AMAZON-02) (AMAZON-02)
2	2a04:4e42:54::84 2a04:4e42:54::84	54113 (FASTLY) (FASTLY)
3	104.75.88.209 104.75.88.209	16625 (AKAMAI-AS) (AKAMAI-AS)
102	24

1 184.72.124.184 (Ashburn, United States) 1 redirects

ASN14618 (AMAZON-AES, US)
PTR: ec2-184-72-124-184.compute-1.amazonaws.com

duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

5 52.1.85.20 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-52-1-85-20.compute-1.amazonaws.com

www.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
stories.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

5 2606:4700::6810:9540 (United States)

ASN13335 (CLOUDFLARENET, US)

cdn.cookielaw.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

44 2600:9000:21f3:ac00:7:60cd:e840:21 (United States)

ASN16509 (AMAZON-02, US)

d35aaqx5ub95lt.cloudfront.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:10::6814:b844 (United States)

ASN13335 (CLOUDFLARENET, US)

geolocation.onetrust.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

14 54.175.79.116 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-54-175-79-116.compute-1.amazonaws.com

excess.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:82b::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.googletagmanager.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 44.195.198.174 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-44-195-198-174.compute-1.amazonaws.com

stories.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 151.101.13.40 (Frankfurt am Main, Germany)

ASN54113 (FASTLY, US)

client.perimeterx.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 13.224.193.74 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-13-224-193-74.fra2.r.cloudfront.net

brb.duolingo.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:80f::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 216.58.212.166 (Mountain View, United States) 1 redirects

ASN15169 (GOOGLE, US)
PTR: ams15s22-in-f166.1e100.net

9814127.fls.doubleclick.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 142.250.186.66 (United States)

ASN15169 (GOOGLE, US)
PTR: fra24s05-in-f2.1e100.net

www.googleadservices.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2a03:2880:f02d:100:face:b00c:0:3 (Frankfurt am Main, Germany)

ASN32934 (FACEBOOK, US)

connect.facebook.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 52.17.137.202 (Dublin, Ireland)

ASN16509 (AMAZON-02, US)
PTR: ec2-52-17-137-202.eu-west-1.compute.amazonaws.com

c0.adalyser.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:82f::2004 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:400c:c06::9b (Brussels, Belgium)

ASN15169 (GOOGLE, US)

stats.g.doubleclick.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 2a03:2880:f12d:181:face:b00c:0:25de (Frankfurt am Main, Germany)

ASN32934 (FACEBOOK, US)

www.facebook.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:828::2004 (Frankfurt am Main, Germany) 1 redirects

ASN15169 (GOOGLE, US)

www.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:80e::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google.de	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:830::2002 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

adservice.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:82b::2002 (Frankfurt am Main, Germany) 1 redirects

ASN15169 (GOOGLE, US)

googleads.g.doubleclick.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:829::2002 (Frankfurt am Main, Germany) 1 redirects

ASN15169 (GOOGLE, US)

adservice.google.de	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 34.255.138.57 (Dublin, Ireland)

ASN16509 (AMAZON-02, US)
PTR: ec2-34-255-138-57.eu-west-1.compute.amazonaws.com

insight.adsrvr.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a04:4e42:54::84 (United States)

ASN54113 (FASTLY, US)

s.pinimg.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

3 104.75.88.209 (Frankfurt am Main, Germany)

ASN16625 (AKAMAI-AS, US)
PTR: a104-75-88-209.deploy.static.akamaitechnologies.com

ct.pinterest.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
44	cloudfront.net d35aaqx5ub95lt.cloudfront.net	594 KB
22	duolingo.com 1 redirects duolingo.com www.duolingo.com excess.duolingo.com stories.duolingo.com brb.duolingo.com	20 KB
6	doubleclick.net 2 redirects 9814127.fls.doubleclick.net stats.g.doubleclick.net googleads.g.doubleclick.net	3 KB
5	cookielaw.org cdn.cookielaw.org	109 KB
4	google.com 1 redirects www.google.com adservice.google.com	563 B
4	facebook.net connect.facebook.net	195 KB
3	pinterest.com ct.pinterest.com	1 KB
3	google.de 1 redirects www.google.de adservice.google.de	1 KB
3	facebook.com www.facebook.com	326 B
2	pinimg.com s.pinimg.com	18 KB
2	adalyser.com c0.adalyser.com	13 KB
2	googleadservices.com www.googleadservices.com	15 KB
2	google-analytics.com www.google-analytics.com	19 KB
1	adsrvr.org insight.adsrvr.org	261 B
1	perimeterx.net client.perimeterx.net	317 B
1	googletagmanager.com www.googletagmanager.com	47 KB
1	onetrust.com geolocation.onetrust.com	373 B
102	17

	Domain	Requested by
44	d35aaqx5ub95lt.cloudfront.net	www.duolingo.com d35aaqx5ub95lt.cloudfront.net
14	excess.duolingo.com	d35aaqx5ub95lt.cloudfront.net
5	cdn.cookielaw.org	www.duolingo.com cdn.cookielaw.org d35aaqx5ub95lt.cloudfront.net
4	connect.facebook.net	www.duolingo.com connect.facebook.net 9814127.fls.doubleclick.net
4	9814127.fls.doubleclick.net	1 redirects www.googletagmanager.com www.duolingo.com adservice.google.com
4	www.duolingo.com	d35aaqx5ub95lt.cloudfront.net
3	ct.pinterest.com	s.pinimg.com 9814127.fls.doubleclick.net
3	www.facebook.com	www.duolingo.com 9814127.fls.doubleclick.net
3	www.google.com	1 redirects www.duolingo.com
2	s.pinimg.com	9814127.fls.doubleclick.net s.pinimg.com
2	www.google.de	www.duolingo.com
2	c0.adalyser.com	www.duolingo.com
2	www.googleadservices.com	www.googletagmanager.com www.googleadservices.com
2	www.google-analytics.com	www.googletagmanager.com d35aaqx5ub95lt.cloudfront.net
2	stories.duolingo.com	d35aaqx5ub95lt.cloudfront.net
1	insight.adsrvr.org	9814127.fls.doubleclick.net
1	adservice.google.de	1 redirects
1	googleads.g.doubleclick.net	1 redirects
1	adservice.google.com	9814127.fls.doubleclick.net
1	stats.g.doubleclick.net	d35aaqx5ub95lt.cloudfront.net
1	brb.duolingo.com	d35aaqx5ub95lt.cloudfront.net
1	client.perimeterx.net	d35aaqx5ub95lt.cloudfront.net
1	www.googletagmanager.com	d35aaqx5ub95lt.cloudfront.net
1	geolocation.onetrust.com	cdn.cookielaw.org
1	duolingo.com	1 redirects
102	25

This site contains links to these domains. Also see Links.

Domain
itunes.apple.com
play.google.com
schools.duolingo.com
englishtest.duolingo.com
research.duolingo.com
incubator.duolingo.com
careers.duolingo.com
design.duolingo.com
press.duolingo.com
investors.duolingo.com
events.duolingo.com
podcast.duolingo.com
apps.apple.com
forum.duolingo.com
status.duolingo.com
blog.duolingo.com
www.instagram.com
www.facebook.com
twitter.com
www.youtube.com
ar.duolingo.com
cs.duolingo.com
de.duolingo.com
el.duolingo.com
en.duolingo.com
es.duolingo.com
fr.duolingo.com
hi.duolingo.com
hu.duolingo.com
id.duolingo.com
it.duolingo.com
ja.duolingo.com
ko.duolingo.com
dn.duolingo.com
pl.duolingo.com
pt.duolingo.com
ro.duolingo.com
ru.duolingo.com
th.duolingo.com
tr.duolingo.com
uk.duolingo.com
vi.duolingo.com
zs.duolingo.com

Subject Issuer	Validity	Valid
*.duolingo.com Go Daddy Secure Certificate Authority - G2	`2020-11-19` - `2021-12-21`	a year	crt.sh
cookielaw.org Cloudflare Inc ECC CA-3	`2021-06-01` - `2022-05-31`	a year	crt.sh
*.cloudfront.net Amazon	`2021-03-19` - `2022-03-17`	a year	crt.sh
onetrust.com Cloudflare Inc ECC CA-3	`2021-02-12` - `2022-02-11`	a year	crt.sh
*.google-analytics.com GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
*.perimeterx.net GlobalSign Atlas R3 DV TLS CA 2020	`2021-05-16` - `2022-06-17`	a year	crt.sh
*.doubleclick.net GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
www.googleadservices.com GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
*.facebook.com DigiCert SHA2 High Assurance Server CA	`2021-07-20` - `2021-10-18`	3 months	crt.sh
*.adalyser.com Thawte RSA CA 2018	`2021-06-11` - `2022-07-12`	a year	crt.sh
*.googleadservices.com GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
www.google.com GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
*.g.doubleclick.net GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
*.google.com GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
www.google.de GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
*.google.de GTS CA 1C3	`2021-06-28` - `2021-09-20`	3 months	crt.sh
*.adsrvr.org GlobalSign GCC R3 DV TLS CA 2020	`2021-03-18` - `2022-04-19`	a year	crt.sh
*.pinterest.com DigiCert TLS RSA SHA256 2020 CA1	`2021-07-27` - `2022-08-05`	a year	crt.sh

This page contains 4 frames:

Primary Page: https://www.duolingo.com/
Frame ID: 54C788EC72A433A871F9AB0A83BA8D49
Requests: 80 HTTP requests in this frame

Frame: https://9814127.fls.doubleclick.net/activityi;dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: D85426986AC5FCA53DB54DD38D847618
Requests: 1 HTTP requests in this frame

Frame: https://adservice.google.com/ddm/fls/i/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: F3FF39BD64180912A081CD0E32741CC8
Requests: 1 HTTP requests in this frame

Frame: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F
Frame ID: 10AC283EE68BB18EBCF331D4DABF7D11
Requests: 11 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page URL History Show full URLs

http://duolingo.com/ HTTP 301
https://www.duolingo.com/ Page URL

Detected technologies

React (JavaScript Frameworks) Expand

Overall confidence: 100%
Detected patterns

html /<[^>]+data-react/i

Facebook (Widgets) Expand

Overall confidence: 100%
Detected patterns

script /\/\/connect\.facebook\.net\/[^/]*\/[a-z]*\.js/i

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

script /google-analytics\.com\/(?:ga|urchin|analytics)\.js/i

Page Statistics

102
Requests

99 %
HTTPS

58 %
IPv6

17
Domains

25
Subdomains

24
IPs

4
Countries

1036 kB
Transfer

3486 kB
Size

22
Cookies

47 Outgoing links

These are links going to different origins than the main page.

URL: https://itunes.apple.com/app/duolingo-learn-spanish-french/id570060128?mt=8
Title: badge-app-storeDownload on theApp Store

Search URL Search Domain Scan URL

URL: https://play.google.com/store/apps/details?hl=en&id=com.duolingo&referrer=utm_source%3Dduolingo.com%26utm_medium%3Dduolingo_web%26utm_content%3Ddownload_button%26utm_campaign%3Dsplash
Title: badge-play-storeGet it onGoogle Play

Search URL Search Domain Scan URL

URL: https://schools.duolingo.com/
Title: Bring Duolingo to your classroom

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/
Title: CERTIFY YOUR ENGLISH

Search URL Search Domain Scan URL

URL: https://research.duolingo.com/
Title: Research

Search URL Search Domain Scan URL

URL: https://incubator.duolingo.com/
Title: Incubator

Search URL Search Domain Scan URL

URL: https://careers.duolingo.com/
Title: Careers

Search URL Search Domain Scan URL

URL: https://design.duolingo.com/
Title: Brand guidelines

Search URL Search Domain Scan URL

URL: https://press.duolingo.com/
Title: Press

Search URL Search Domain Scan URL

URL: https://investors.duolingo.com/
Title: Investors

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/en
Title: Duolingo English Test

Search URL Search Domain Scan URL

URL: https://events.duolingo.com/
Title: Duolingo Events

Search URL Search Domain Scan URL

URL: https://podcast.duolingo.com/
Title: Podcast

Search URL Search Domain Scan URL

URL: https://apps.apple.com/app/duolingo-abc-learn-to-read/id1440502568?pt=1374442&ct=Site%20map&mt=8
Title: Duolingo ABC (iOS)

Search URL Search Domain Scan URL

URL: https://forum.duolingo.com/
Title: Discussion

Search URL Search Domain Scan URL

URL: https://schools.duolingo.com/help
Title: Schools FAQs

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/faq
Title: Duolingo English Test FAQs

Search URL Search Domain Scan URL

URL: https://status.duolingo.com/
Title: Status

Search URL Search Domain Scan URL

URL: https://blog.duolingo.com/
Title: Blog

Search URL Search Domain Scan URL

URL: https://www.instagram.com/duolingo
Title: Instagram

Search URL Search Domain Scan URL

URL: https://www.facebook.com/duolingo
Title: Facebook

Search URL Search Domain Scan URL

URL: https://twitter.com/duolingo
Title: Twitter

Search URL Search Domain Scan URL

URL: https://www.youtube.com/user/duolingo
Title: YouTube

Search URL Search Domain Scan URL

URL: https://ar.duolingo.com/
Title: العربية

Search URL Search Domain Scan URL

URL: https://cs.duolingo.com/
Title: Čeština

Search URL Search Domain Scan URL

URL: https://de.duolingo.com/
Title: Deutsch

Search URL Search Domain Scan URL

URL: https://el.duolingo.com/
Title: Ελληνικά

Search URL Search Domain Scan URL

URL: https://en.duolingo.com/
Title: English

Search URL Search Domain Scan URL

URL: https://es.duolingo.com/
Title: Español

Search URL Search Domain Scan URL

URL: https://fr.duolingo.com/
Title: Français

Search URL Search Domain Scan URL

URL: https://hi.duolingo.com/
Title: हिंदी

Search URL Search Domain Scan URL

URL: https://hu.duolingo.com/
Title: Magyar

Search URL Search Domain Scan URL

URL: https://id.duolingo.com/
Title: Bahasa Indonesia

Search URL Search Domain Scan URL

URL: https://it.duolingo.com/
Title: Italiano

Search URL Search Domain Scan URL

URL: https://ja.duolingo.com/
Title: 日本語

Search URL Search Domain Scan URL

URL: https://ko.duolingo.com/
Title: 한국어

Search URL Search Domain Scan URL

URL: https://dn.duolingo.com/
Title: Nederlands

Search URL Search Domain Scan URL

URL: https://pl.duolingo.com/
Title: Polski

Search URL Search Domain Scan URL

URL: https://pt.duolingo.com/
Title: Português

Search URL Search Domain Scan URL

URL: https://ro.duolingo.com/
Title: Română

Search URL Search Domain Scan URL

URL: https://ru.duolingo.com/
Title: Русский

Search URL Search Domain Scan URL

URL: https://th.duolingo.com/
Title: ภาษาไทย

Search URL Search Domain Scan URL

URL: https://tr.duolingo.com/
Title: Türkçe

Search URL Search Domain Scan URL

URL: https://uk.duolingo.com/
Title: Українською

Search URL Search Domain Scan URL

URL: https://vi.duolingo.com/
Title: Tiếng Việt

Search URL Search Domain Scan URL

URL: https://zs.duolingo.com/
Title: 中文

Search URL Search Domain Scan URL

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

http://duolingo.com/ HTTP 301
https://www.duolingo.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 69

https://9814127.fls.doubleclick.net/activityi;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F HTTP 302
https://9814127.fls.doubleclick.net/activityi;dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Request Chain 88

https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=1102441780&cv=9&fst=1627612838277&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg7s0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&auid=822942272.1627612838&capi=1&hn=www.googleadservices.com&async=1&fmt=3&ctc_id=CAIVAgAAAB0CAAAA&ct_cookie_present=false&ocp_id=pmYDYdnBFYOQgAeuqJmABw&sscte=1&crd=&eitems=ChEI8KOJiAYQ6cnL_KCG_tz_ARIdAEgjyc4nBGgiO3NNTovp7m6LO0KyW5QFbBtQt5U HTTP 302
https://www.google.com/pagead/1p-conversion/397119219/?random=1102441780&cv=9&fst=1627612838277&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg7s0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&auid=822942272.1627612838&capi=1&hn=www.googleadservices.com&async=1&fmt=3&ctc_id=CAIVAgAAAB0CAAAA&ct_cookie_present=false&sscte=1&crd=&is_vtc=1&ocp_id=pmYDYdnBFYOQgAeuqJmABw&cid=CAQSKQCNIrLMz8G-CwgjSZfNcSVjnR1Yv7Bd3s4eVDZU6LUiOwQKr9LgfgSG&eitems=ChEI8KOJiAYQ6cnL_KCG_tz_ARIdAEgjyc4VNP6lk4eHIM3Ob_k-YEP5lGmNZAKiBnU&random=2856230731&resp=GooglemKTybQhCsO HTTP 302
https://www.google.de/pagead/1p-conversion/397119219/?random=1102441780&cv=9&fst=1627612838277&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg7s0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&auid=822942272.1627612838&capi=1&hn=www.googleadservices.com&async=1&fmt=3&ctc_id=CAIVAgAAAB0CAAAA&ct_cookie_present=false&sscte=1&crd=&is_vtc=1&ocp_id=pmYDYdnBFYOQgAeuqJmABw&cid=CAQSKQCNIrLMz8G-CwgjSZfNcSVjnR1Yv7Bd3s4eVDZU6LUiOwQKr9LgfgSG&eitems=ChEI8KOJiAYQ6cnL_KCG_tz_ARIdAEgjyc4VNP6lk4eHIM3Ob_k-YEP5lGmNZAKiBnU&random=2856230731&resp=GooglemKTybQhCsO&ipr=y

Request Chain 89

https://adservice.google.de/ddm/fls/i/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F HTTP 302
https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F

102 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2

200

Primary Request / Show response
www.duolingo.com/
Redirect Chain

http://duolingo.com/
https://www.duolingo.com/

17 KB
8 KB

424ms
164ms

Document
text/html

52.1.85.20
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL

https://www.duolingo.com/

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

52.1.85.20 Ashburn, United States, ASN14618 (AMAZON-AES, US),

Reverse DNS

ec2-52-1-85-20.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

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Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

:method: GET
:authority: www.duolingo.com
:scheme: https
:path: /
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: none
sec-fetch-mode: navigate
sec-fetch-user: ?1
sec-fetch-dest: document
accept-encoding: gzip, deflate, br
accept-language: en-US
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:37 GMT
content-type: text/html; charset=UTF-8
set-cookie: AWSALB=fAAN4hz9AdKBZylaU7XIen+EqtCqHJfpBruOR1I8h+wmz8PIBWOu7aa9V0zVm/ARO+YfRlnQobPwLH/GSoD7G3dRkQPUcMNiwCRO7RvUdJZdEq2sLCNoFZofq8CG; Expires=Fri, 06 Aug 2021 02:40:37 GMT; Path=/ AWSALBCORS=fAAN4hz9AdKBZylaU7XIen+EqtCqHJfpBruOR1I8h+wmz8PIBWOu7aa9V0zVm/ARO+YfRlnQobPwLH/GSoD7G3dRkQPUcMNiwCRO7RvUdJZdEq2sLCNoFZofq8CG; Expires=Fri, 06 Aug 2021 02:40:37 GMT; Path=/; SameSite=None; Secure logged_out_uuid=a6377887-cb96-4a7c-8d6e-d129d9f4cac7; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Sat, 30-Jul-2022 02:40:37 GMT lang=en; Domain=.duolingo.com; Max-Age=31536000; Path=/; expires=Sat, 30-Jul-2022 02:40:37 GMT duocsexp=web_delight_preload_font~control~; Domain=.duolingo.com; Max-Age=7776000; Path=/; expires=Thu, 28-Oct-2021 02:40:37 GMT wuuid=828e6c2d-e012-4cec-b11e-755ac3d92a0e
server: duo-api
no-retry: 1
surrogate-control: no-store
expires: 0
pragma: no-cache
cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
x-frame-options: SAMEORIGIN
x-tid: ffff73c36103669e000a
x-ws: UK
x-runtime: 0.03446
x-ipcountry: US
content-encoding: gzip
x-envoy-upstream-service-time: 36
x-duo-request-host: www.duolingo.com

Redirect headers

Server: nginx/1.4.6 (Ubuntu)
Date: Fri, 30 Jul 2021 02:40:36 GMT
Content-Type: text/html
Content-Length: 193
Connection: keep-alive
Location: https://www.duolingo.com

GET
H2 200 otSDKStub.js Show response
cdn.cookielaw.org/scripttemplates/ 19 KB
7 KB 54ms
16ms Script
application/javascript 2606:4700::6810:9540
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.cookielaw.org/scripttemplates/otSDKStub.js

Requested by

Host: www.duolingo.com
URL: https://www.duolingo.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6810:9540 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name	Value
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X-Content-Type-Options	nosniff

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-ms-blob-type: BlockBlob
date: Fri, 30 Jul 2021 02:40:37 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
content-md5: ElyA2tEJE7gBmVkJbkUH5A==
age: 6617
vary: Accept-Encoding
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x-ms-lease-status: unlocked
last-modified: Fri, 23 Jul 2021 01:58:42 GMT
server: cloudflare
etag: 0x8D94D7D65E6FA72
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-type: application/javascript
access-control-allow-origin: *
x-ms-request-id: 41c27621-401e-00fb-7e99-8410fc000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: max-age=14400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 676b39293a534e3e-FRA

GET
H2 200 app-0f686cd9.css
d35aaqx5ub95lt.cloudfront.net/css/ 85 KB
17 KB 68ms
20ms Stylesheet
text/css 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 8cb601e16964f1a01f53bb9ea0d667e797dc39f7251e876bc8a4a5d863059048

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Tue, 27 Jul 2021 23:49:13 GMT
content-encoding: gzip
last-modified: Tue, 27 Jul 2021 22:56:01 GMT
server: AmazonS3
age: 183085
etag: "38587d80e1953b1b2e6857274b2bf376"
x-cache: Hit from cloudfront
content-type: text/css
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 17425
x-amz-cf-id: QxxaJkGQakmHjILjWYaaaqKo-oW0ffwwS92J9GW0NsmabGdV0tLg3w==

GET
H2 200 reactVendor.react-redux-c21fed7f.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 10 KB
4 KB 65ms
21ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-redux-c21fed7f.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 82c8eced9472960b3881841cae7da630912a577c46b45fcb895d209eb415ae59

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Tue, 06 Jul 2021 11:40:21 GMT
content-encoding: gzip
last-modified: Fri, 02 Jul 2021 23:04:53 GMT
server: AmazonS3
age: 2041217
etag: "f04a72f922affd263a5e722d411e56d8"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
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x-amz-cf-id: kCVB8PDVzokVQIFl0yuxxl2dueUrvt4QsYIHzS3a6ybIWj3VjO4-mw==

GET
H2 200 reactVendor.react-focus-lock-afd2c8b9.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 5 KB
2 KB 68ms
24ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-focus-lock-afd2c8b9.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: bb2329d2322779544bb3950dbc7b8a54b93c23e8676c6aa645ac20f157431fa5

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 09 Jun 2021 21:06:16 GMT
content-encoding: gzip
last-modified: Wed, 09 Jun 2021 21:00:43 GMT
server: AmazonS3
age: 4340062
etag: "44d324ff61d24fecfbe285a7b8adf7ee"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 2121
x-amz-cf-id: blOU-jsPGt3VPy050F8m0nQknrThvPMpZRtqXazKxc3OEg0C4HLAMQ==

GET
H2 200 reactVendor.react-transition-group-dc905bea.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 9 KB
3 KB 69ms
25ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-transition-group-dc905bea.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 05fcfa2517aaa2c7dcf18e38c8083e200a415b95c4136b1f0eb37d7fac56d2cb

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 09 Jun 2021 21:06:16 GMT
content-encoding: gzip
last-modified: Wed, 09 Jun 2021 21:00:43 GMT
server: AmazonS3
age: 4340062
etag: "4e2b077561adef9e9be61c9058e74e9e"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
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x-amz-cf-id: Qc173vgLDgbo6u8BUhfkM_gBvc3i1sMr9kgMJvLJp9QvoctDitFihg==

GET
H2 200 reactVendor.react-dom-ef464f5f.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 135 KB
43 KB 82ms
38ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-dom-ef464f5f.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: b134b71be4aa8f52fe5e99c07597aab5844bb0a453c74ca2b7d36e4e0a5a933b

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 09 Jun 2021 21:06:16 GMT
content-encoding: gzip
last-modified: Wed, 09 Jun 2021 21:00:43 GMT
server: AmazonS3
age: 4340062
etag: "2cf4aee253108af7117888ce6cec88af"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 43131
x-amz-cf-id: Lidg4-zrOKhpwl5tIwqohdB1D_CnOqfCd-D8XqxHScf2emYBT5lcnQ==

GET
H2 200 reactVendor.react-7d675bbd.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 6 KB
3 KB 82ms
39ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-7d675bbd.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 26b75738287a5b67ddbb51e1e39990baf87702a794c683a3603efe396144824e

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Thu, 15 Jul 2021 01:05:54 GMT
content-encoding: gzip
last-modified: Wed, 14 Jul 2021 20:50:35 GMT
server: AmazonS3
age: 1301684
etag: "03222cf3f04aa3e8ee47b222eb3fafcc"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
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x-amz-cf-id: oioNjcTVy-__GrB-vm0yuLNTaZFxZrZnH-F7XcQkOJye_2Z3HqfDAg==

GET
H2 200 reactVendor.react-popper-fa7f3131.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 2 KB
1 KB 116ms
73ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/reactVendor.react-popper-fa7f3131.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: defcb1ece803b2eb30aba65877461530602c0f86fb2fbcf0ca20c6a5448cc16e

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 09 Jun 2021 21:06:16 GMT
content-encoding: gzip
last-modified: Wed, 09 Jun 2021 21:00:43 GMT
server: AmazonS3
age: 4340062
etag: "54f3dd466fd9b7a72f1aedc37ee40de0"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
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x-amz-cf-id: M80uCSOkDLFFkLu7YQL5_z529Q_LB_3T4VChbigO6ecMR_LUzpVYWA==

GET
H2 200 reactVendor.react-is-870005e5.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 2 KB
1 KB 86ms
43ms Script
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cf-ray: 676b392a2c654e5b-FRA

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 385ms
125ms Preflight 54.175.79.116
AMAZON-AES

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Full URL: https://excess.duolingo.com/batch
Protocol: H2
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-max-age: 3600
accept-encoding: gzip, identity
allow: GET, HEAD, POST, TRACE, OPTIONS
server: Jetty(9.2.z-SNAPSHOT)

GET
H2 200 gtm.js Show response
www.googletagmanager.com/ 142 KB
47 KB 29ms
28ms Script
application/javascript 2a00:1450:4001:82b::2008
GOOGLE

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Full URL

https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:82b::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

50ef7150fd4b081942219f54ab33b2c2bcc4dbdcff84c6dbcfc9e14e30bf55a4

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:37 GMT
content-encoding: br
vary: Accept-Encoding
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 48204
x-xss-protection: 0
last-modified: Fri, 30 Jul 2021 00:00:00 GMT
server: Google Tag Manager
strict-transport-security: max-age=31536000; includeSubDomains
content-type: application/javascript; charset=UTF-8
access-control-allow-origin: *
cache-control: private, max-age=900
access-control-allow-credentials: true
access-control-allow-headers: Cache-Control
expires: Fri, 30 Jul 2021 02:40:37 GMT

GET
H2 200 7408-32ab1a33.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 633 B
873 B 7ms
6ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/7408-32ab1a33.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 0a564ffb760101bf5b03fcd7d82a500ca4fddf3085bd5154db35551d3c22f786

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Thu, 22 Jul 2021 14:54:23 GMT
content-encoding: gzip
last-modified: Thu, 22 Jul 2021 14:48:43 GMT
server: AmazonS3
age: 647175
etag: "646dd8e3b0e079e34adc6fb32bb0f643"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 469
x-amz-cf-id: j9m9dRkpsSouOmt38r8DwhCOaRSKwrj4Zc93AycxlrQIty9NFUlCWQ==

GET
H2 200 5830-e0a1e1dc.css
d35aaqx5ub95lt.cloudfront.net/css/ 16 KB
4 KB 8ms
7ms Stylesheet
text/css 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/5830-e0a1e1dc.css
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 882b6644c6d55064bd0f5f6488ee0c24084b2081e7ebd7d516d7a297ca4c40e2

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Tue, 27 Jul 2021 19:32:27 GMT
content-encoding: gzip
last-modified: Tue, 27 Jul 2021 18:33:10 GMT
server: AmazonS3
age: 198491
etag: "c2f79f2ab2d5e3741a97560fb5a76692"
x-cache: Hit from cloudfront
content-type: text/css
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 4113
x-amz-cf-id: qkj2HwZ6aItcuw5ciRVYoQvp1Ck-_K-A2sXfRReBO-gBkn7yJ0gqrQ==

GET
H2 200 5830-38b37410.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 68 KB
19 KB 8ms
8ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/5830-38b37410.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 67ef9be5b05085854d30a8bcb836c6552eb73c7b25890cbf60939b9c980ef483

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Tue, 27 Jul 2021 19:32:27 GMT
content-encoding: gzip
last-modified: Tue, 27 Jul 2021 18:33:16 GMT
server: AmazonS3
age: 198491
etag: "66d1bac0b3ddd9b6eaa3da84b0f1579b"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 19043
x-amz-cf-id: 8Q3_xJ8ire1lb3vaeOxdZ2bgyomqQ-2v6e_FtV7Qss7OL06G6IuLSg==

GET
H2 200 6598-31d6cfe0.css
d35aaqx5ub95lt.cloudfront.net/css/ 0
413 B 7ms
7ms Stylesheet
text/css 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/6598-31d6cfe0.css
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 30 Jun 2021 23:29:34 GMT
content-encoding: gzip
last-modified: Wed, 30 Jun 2021 23:02:31 GMT
server: AmazonS3
age: 2517064
etag: "4a4dd3598707603b3f76a2378a4504aa"
x-cache: Hit from cloudfront
content-type: text/css
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 20
x-amz-cf-id: 3TP11NMEzPUfHgh0Qo7ytKW9Gam-LlZuBK4Zjr-TojA4ICLtRlyx0g==

GET
H2 200 6598-26adf79c.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 629 B
840 B 8ms
7ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/6598-26adf79c.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 2d940b6af1497d9ae20bad66762e83e3c3d91f0523dab93752f5c6d7f1453c8b

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 30 Jun 2021 23:29:34 GMT
content-encoding: gzip
last-modified: Wed, 30 Jun 2021 23:02:37 GMT
server: AmazonS3
age: 2517064
etag: "720a6eb722bbc8df53b9470726499586"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 435
x-amz-cf-id: 9hS5fSCWyoJOdcReG_RH3IMUIt_8QDYJMsPGyE85LLn1wu8ADvzHCg==

GET
H2 200 7332-05e5acf6.css
d35aaqx5ub95lt.cloudfront.net/css/ 967 B
897 B 8ms
8ms Stylesheet
text/css 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

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Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/7332-05e5acf6.css
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 5a6fbde851ce05dc72e98d7161cbb81f6e9486ab4caa813a18530b5e2531a013

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 30 Jun 2021 23:29:34 GMT
content-encoding: gzip
last-modified: Wed, 30 Jun 2021 23:02:31 GMT
server: AmazonS3
age: 2517064
etag: "778a5435dbed3a28351254720b5204d1"
x-cache: Hit from cloudfront
content-type: text/css
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 503
x-amz-cf-id: m8rf6UWShDX7u-PHpf8haKC1lMSaIvfFryWn0yu44PbjQVqakSbKxg==

GET
H2 200 7332-d0f1e470.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 6 KB
3 KB 8ms
8ms Script
application/javascript 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

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Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/7332-d0f1e470.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 9f0eda6fedb71cccee41b516d041b88f4ead33d29be362b47a348dd791c5b490

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Wed, 30 Jun 2021 23:29:34 GMT
content-encoding: gzip
last-modified: Wed, 30 Jun 2021 23:02:37 GMT
server: AmazonS3
age: 2517064
etag: "afbc85d054cef616dce3750328d3d746"
x-cache: Hit from cloudfront
content-type: application/javascript
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
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content-length: 2480
x-amz-cf-id: vlWs-Is1oOjm9aysa1kKN4HoB9kI_e07FCikIjxwo6TSeDZRowyP_g==

GET
H2 200 icon-sprite8.svg
d35aaqx5ub95lt.cloudfront.net/images/ 84 KB
24 KB 19ms
7ms Image
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/icon-sprite8.svg
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 2cf647948337600dbe8558d968ba52007326132a72245429a5fa9c0ba3a46eda

Request headers

Referer: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Fri, 11 Jun 2021 15:13:53 GMT
content-encoding: gzip
last-modified: Thu, 10 Jun 2021 20:54:44 GMT
server: AmazonS3
age: 4188405
etag: "c53c2e95cbf0656aace95abb1ecc5bb7"
x-cache: Hit from cloudfront
content-type: image/svg+xml
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
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accept-ranges: bytes
content-length: 23984
x-amz-cf-id: EQUtkx63hQC7f50ucZA8qd9ygw3GwPxLyBP5WqspaGBSY2q4XzLmjg==

GET
H2 200 star-pattern.svg
d35aaqx5ub95lt.cloudfront.net/images/ 6 KB
2 KB 19ms
9ms Image
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/star-pattern.svg
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: ec078f79e27c3ad2f41eb5340fa93539fa32eaad4eb193ada5c23a497d3b939c

Request headers

Referer: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Sun, 06 Jun 2021 17:28:46 GMT
content-encoding: gzip
last-modified: Fri, 04 Jun 2021 22:53:47 GMT
server: AmazonS3
age: 4612312
etag: "b0f096e3f1be4d6f7a8a205582320f6d"
x-cache: Hit from cloudfront
content-type: image/svg+xml
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
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x-amz-cf-id: iwM3d5VyjY8T18oucAdXvHaYP9kbjNntEUjUDxs1RgjKWHoclRp6AA==

GET
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2 KB 19ms
9ms Image
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
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Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/331a32943ff73be28537dfc7469d5639.svg
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 4fc35fbc82802a19690bea33c5cee6c6d6054a607f43928627bf097dd8406a9b

Request headers

Referer: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sat, 08 May 2021 20:37:24 GMT
content-encoding: gzip
last-modified: Fri, 07 May 2021 17:16:43 GMT
server: AmazonS3
age: 7106593
etag: "9633c4c6df081059288e40ef1ab05aa4"
x-cache: Hit from cloudfront
content-type: image/svg+xml
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
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x-amz-cf-id: KVo7o6WBD_cBF8__0j4z8wfZFlvD5nyPAO997J_508VGHmq3hQpvjg==

GET
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d35aaqx5ub95lt.cloudfront.net/images/ 162 KB
35 KB 21ms
11ms Image
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
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Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/juicy-flag-sprite-9.svg
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: d4b5992ae15110a4218cd35dfe71795e60bc3424502ca3fafac98e1e1dd4a7a4

Request headers

Referer: https://d35aaqx5ub95lt.cloudfront.net/css/app-0f686cd9.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Thu, 24 Jun 2021 23:58:05 GMT
content-encoding: gzip
last-modified: Thu, 24 Jun 2021 21:45:58 GMT
server: AmazonS3
age: 3033753
etag: "c9adfdc42467f0bb3e77dbd8adb817ce"
x-cache: Hit from cloudfront
content-type: image/svg+xml
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
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content-length: 35678
x-amz-cf-id: uU9Kbmm0i9ZLmVn7NtV3jVeO-sogikjd59y1FYgGbxAsSYpvAdgYSQ==

GET
H2 200 spread.svg
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2 KB 18ms
11ms Image
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
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AMAZON-02

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AMAZON-AES

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Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type: application/json

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain; charset=ISO-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

GET
H2 200 dca3b978d07a7dfc05adb1d5526e9e21.svg
d35aaqx5ub95lt.cloudfront.net/images/ 2 KB
1 KB 7ms
7ms Image
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/dca3b978d07a7dfc05adb1d5526e9e21.svg
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 937da427a3328eab0f38755cf0bee837674ecfeefec8f25f29da168828b5d354

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-amz-server-side-encryption: AES256
date: Thu, 22 Jul 2021 14:54:23 GMT
content-encoding: gzip
last-modified: Thu, 22 Jul 2021 14:48:40 GMT
server: AmazonS3
age: 647175
etag: "b8b89e00db56d02aa575bf3e55845f5d"
x-cache: Hit from cloudfront
content-type: image/svg+xml
via: 1.1 06d36e78e8dfd9468327f09115761a9e.cloudfront.net (CloudFront)
cache-control: max-age=315360000
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
content-length: 993
x-amz-cf-id: 18IUrO5NQgUyl6oFb_kMMfBKlZm-TVKynuUldd_qbptr5yh11NBIUw==

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 335ms
124ms Preflight 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-max-age: 3600
accept-encoding: gzip, identity
allow: GET, HEAD, POST, TRACE, OPTIONS
server: Jetty(9.2.z-SNAPSHOT)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 334ms
125ms Preflight 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-max-age: 3600
accept-encoding: gzip, identity
allow: GET, HEAD, POST, TRACE, OPTIONS
server: Jetty(9.2.z-SNAPSHOT)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 323ms
124ms Preflight 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-max-age: 3600
accept-encoding: gzip, identity
allow: GET, HEAD, POST, TRACE, OPTIONS
server: Jetty(9.2.z-SNAPSHOT)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 321ms
125ms Preflight 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-max-age: 3600
accept-encoding: gzip, identity
allow: GET, HEAD, POST, TRACE, OPTIONS
server: Jetty(9.2.z-SNAPSHOT)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 319ms
125ms Preflight 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-max-age: 3600
accept-encoding: gzip, identity
allow: GET, HEAD, POST, TRACE, OPTIONS
server: Jetty(9.2.z-SNAPSHOT)

OPTIONS
H2 200 config
stories.duolingo.com/api2/ Frame 0
0 383ms
126ms Preflight 44.195.198.174
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL

https://stories.duolingo.com/api2/config?fields=courses&_=1627612837937

Protocol

Server

44.195.198.174 Ashburn, United States, ASN14618 (AMAZON-AES, US),

Reverse DNS

ec2-44-195-198-174.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Frame-Options	DENY
X-Xss-Protection	1 ; mode=block

Request headers

Accept: */*
Access-Control-Request-Method: GET
Access-Control-Request-Headers: x-amzn-trace-id,x-requested-with
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
vary: Origin,Access-Control-Request-Method,Access-Control-Request-Headers
access-control-allow-origin: https://www.duolingo.com
access-control-allow-methods: GET,HEAD,POST
access-control-allow-headers: x-amzn-trace-id, x-requested-with
access-control-allow-credentials: true
access-control-max-age: 1728000
cache-control: no-cache, no-store, max-age=0, must-revalidate
pragma: no-cache
expires: 0
x-content-type-options: nosniff
x-frame-options: DENY
x-xss-protection: 1 ; mode=block
referrer-policy: no-referrer
x-envoy-upstream-service-time: 1
x-duo-request-host: stories-edge.duolingo.com
server: duo-api

GET
H2 200 main.min.js Show response
client.perimeterx.net/PXAsQJFZ9W/ 0
317 B 99ms
27ms Script
application/javascript 151.101.13.40
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL: https://client.perimeterx.net/PXAsQJFZ9W/main.min.js
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 151.101.13.40 Frankfurt am Main, Germany, ASN54113 (FASTLY, US),
Reverse DNS
Software: /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:37 GMT
via: 1.1 varnish
age: 386
x-cache: HIT
content-length: 0
x-served-by: cache-fra19163-FRA
x-timer: S1627612838.988893,VS0,VE0
active-cdn: fastly
etag: W/"0-2jmj7l5rSw0yVb/vlWAYkK/YBwk"
vary: Accept-Encoding
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
access-control-expose-headers: active-cdn,x-served-by
cache-control: max-age=600,stale-while-revalidate=60,stale-if-error=3600
accept-ranges: bytes
x-cache-hits: 1

GET
H2 200 bcc28b9014bf7d8d8c238636aac746e2.svg Show response
d35aaqx5ub95lt.cloudfront.net/images/ 775 B
955 B 9ms
9ms XHR
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/bcc28b9014bf7d8d8c238636aac746e2.svg
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 912729deb7fba866da89a4ac724aadf7bd5cc81462540a1d6e68efb256b36514

Request headers

Accept: application/json, text/plain, */*
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sat, 08 May 2021 00:17:21 GMT
content-encoding: gzip
vary: Origin
age: 7179797
x-cache: Hit from cloudfront
content-length: 458
access-control-allow-origin: https://www.duolingo.com
last-modified: Fri, 07 May 2021 17:16:44 GMT
server: AmazonS3
etag: "9e0178d20199bb6d19f087b7ad12d172"
access-control-max-age: 3000
access-control-allow-methods: GET
content-type: image/svg+xml
via: 1.1 32e3b86ae254a231182567c0124af893.cloudfront.net (CloudFront)
cache-control: max-age=315360000
access-control-allow-credentials: true
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
x-amz-cf-id: -JXAf9hqZT63yBXcK-zM5Es-ubnb2noPNCmTi8QMs1sOyOPL49C_aQ==

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 270ms
265ms XHR
text/plain 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type: application/json

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain; charset=ISO-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

GET
H2 200 c069b221165df641c9f803f6393d3873.svg Show response
d35aaqx5ub95lt.cloudfront.net/images/ 1 KB
1 KB 7ms
7ms XHR
image/svg+xml 2600:9000:21f3:ac00:7:60cd:e840:21
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/c069b221165df641c9f803f6393d3873.svg
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2600:9000:21f3:ac00:7:60cd:e840:21 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software: AmazonS3 /
Resource Hash: 807061542b2cdbaef533fdc4ca71f30b30a5b090165f332afca3b5539e04f3ca

Request headers

Accept: application/json, text/plain, */*
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Tue, 09 Feb 2021 04:44:04 GMT
content-encoding: gzip
vary: Origin
age: 14766993
x-cache: Hit from cloudfront
content-length: 616
access-control-allow-origin: https://www.duolingo.com
last-modified: Mon, 08 Feb 2021 21:32:23 GMT
server: AmazonS3
etag: "f8d89d398bc4f0dda42f0ea6a4a23807"
access-control-max-age: 3000
access-control-allow-methods: GET
content-type: image/svg+xml
via: 1.1 32e3b86ae254a231182567c0124af893.cloudfront.net (CloudFront)
cache-control: max-age=315360000
access-control-allow-credentials: true
x-amz-cf-pop: FRA2-C2
accept-ranges: bytes
x-amz-cf-id: 3WjgGmr6ZXt8CiMOaXKASYhnrKIWaTkn6Dm5p0hKFG-ZqbeZoFZc2g==

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 283ms
281ms XHR
text/plain 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type: application/json

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain; charset=ISO-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 268ms
264ms XHR
text/plain 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type: application/json

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain; charset=ISO-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 335ms
332ms XHR
text/plain 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type: application/json

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain; charset=ISO-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 309ms
308ms XHR
text/plain 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type: application/json

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain; charset=ISO-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

GET
H2 404 web.json Show response
brb.duolingo.com/0/ 345 B
768 B 329ms
245ms XHR
text/html 13.224.193.74
AMAZON-02

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Full URL: https://brb.duolingo.com/0/web.json?user=0&ts=1627612837&tzoffset=-2
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 13.224.193.74 , United States, ASN16509 (AMAZON-02, US),
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Software: AmazonS3 /
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Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:37 GMT
via: 1.1 eb83e7e264681d87a86c9b6a2159e502.cloudfront.net (CloudFront)
server: AmazonS3
x-amz-cf-pop: FRA2-C1
vary: Origin,Access-Control-Request-Headers,Access-Control-Request-Method
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content-length: 345
x-amz-cf-id: MPcRxQjRWB-vx8V8vZ7WZgdzCP4Q_z632qoogdFKzaTqYFAdnB6QyQ==

GET
H2 200 config Show response
www.duolingo.com/2017-06-30/ 7 KB
3 KB 137ms
136ms XHR
application/json 52.1.85.20
AMAZON-AES

General

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Full URL

https://www.duolingo.com/2017-06-30/config?fields=ageRestrictionLimit,clientExperiments{nurr_web_change_mobile_course_picker,seo_dictionary_bread_crumbs},courses,dictionaryHost,featureFlags,ipCountry,speechHost,xpLevelCutoffs&_=1627612837936

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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Reverse DNS

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Software

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Security Headers

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Request headers

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accept: application/json, text/plain, */*
cache-control: no-cache
:authority: www.duolingo.com
referer: https://www.duolingo.com/
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sec-fetch-site: same-origin
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-encoding: gzip
x-ws: UK
x-tid: ffff73c36103669e000e
surrogate-control: no-store
x-duo-request-host: www.duolingo.com
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server: duo-api
no-retry: 1
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content-type: application/json; charset=UTF-8
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expires: 0

GET
H2 200 config Show response
stories.duolingo.com/api2/ 863 B
1 KB 127ms
126ms XHR
application/json 52.1.85.20
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL

https://stories.duolingo.com/api2/config?fields=courses&_=1627612837937

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

52.1.85.20 Ashburn, United States, ASN14618 (AMAZON-AES, US),

Reverse DNS

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Software

duo-api /

Resource Hash

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Security Headers

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Request headers

Accept: application/json, text/plain, */*
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X-Requested-With: XMLHttpRequest
X-Amzn-Trace-Id: User=0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
x-content-type-options: nosniff
x-duo-request-host: stories-edge.duolingo.com
x-envoy-upstream-service-time: 2
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access-control-allow-origin: https://www.duolingo.com
cache-control: no-cache, no-store, max-age=0, must-revalidate
access-control-allow-credentials: true
expires: 0

POST
H2 200 tracking-status Show response
www.duolingo.com/2017-06-30/ 2 B
1 KB 146ms
146ms XHR
application/json 52.1.85.20
AMAZON-AES

General

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Full URL

https://www.duolingo.com/2017-06-30/tracking-status

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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Reverse DNS

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Software

duo-api /

Resource Hash

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Security Headers

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Request headers

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x-requested-with: XMLHttpRequest
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content-type: application/json;charset=UTF-8
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cache-control: no-cache
:authority: www.duolingo.com
referer: https://www.duolingo.com/
:scheme: https
sec-fetch-site: same-origin
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Accept: application/json, text/plain, */*
Referer: https://www.duolingo.com/
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X-Amzn-Trace-Id: User=0
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Content-Type: application/json;charset=UTF-8

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
x-ws: UK
access-control-allow-origin: https://www.duolingo.com
x-tid: ffff7364610366900012
surrogate-control: no-store
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access-control-allow-headers: , accept, accept-encoding, accept-language, authorization, cache-control, connection, content-type, dnt, host, if-modified-since, keep-alive, user-agent, x-requested-with
expires: 0

GET
H2 200 list Show response
www.duolingo.com/api/1/courses/ 28 KB
4 KB 173ms
167ms XHR
application/json 52.1.85.20
AMAZON-AES

General

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Full URL

https://www.duolingo.com/api/1/courses/list?_=1627612837939

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js

Protocol

Security

TLS 1.2, ECDHE_RSA, AES_128_GCM

Server

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Reverse DNS

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Software

duo-api /

Resource Hash

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Security Headers

Name	Value
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Request headers

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cache-control: no-cache
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referer: https://www.duolingo.com/
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Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-encoding: gzip
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expires: 0

GET
H2 200 otBannerSdk.js Show response
cdn.cookielaw.org/scripttemplates/6.16.0/ 374 KB
83 KB 12ms
10ms Script
application/javascript 2606:4700::6810:9540
CLOUDFLARENET

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https://cdn.cookielaw.org/scripttemplates/6.16.0/otBannerSdk.js

Requested by

Host: cdn.cookielaw.org
URL: https://cdn.cookielaw.org/scripttemplates/otSDKStub.js

Protocol

Security

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Server

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Security Headers

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Request headers

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Response headers

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content-encoding: gzip
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server: cloudflare
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cf-ray: 676b392ddeb34e3e-FRA
expires: Sat, 07 Aug 2021 02:40:38 GMT

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 48 KB
19 KB 6ms
5ms Script
text/javascript 2a00:1450:4001:80f::200e
GOOGLE

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Full URL

https://www.google-analytics.com/analytics.js

Requested by

Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

Referer: https://www.duolingo.com/
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Response headers

strict-transport-security: max-age=10886400; includeSubDomains; preload
content-encoding: gzip
x-content-type-options: nosniff
last-modified: Tue, 13 Jul 2021 18:24:06 GMT
server: Golfe2
age: 4934
date: Fri, 30 Jul 2021 01:18:24 GMT
vary: Accept-Encoding
content-type: text/javascript
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cross-origin-resource-policy: cross-origin
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content-length: 19672
expires: Fri, 30 Jul 2021 03:18:24 GMT

GET
H3-29

200

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9814127.fls.doubleclick.net/ Frame D854
Redirect Chain

https://9814127.fls.doubleclick.net/activityi;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F?
https://9814127.fls.doubleclick.net/activityi;dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww...

482 B
407 B

90ms
46ms

Document
text/html

216.58.212.166
GOOGLE

General

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Full URL

https://9814127.fls.doubleclick.net/activityi;dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F?

Requested by

Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-TX6Z97C

Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

216.58.212.166 Mountain View, United States, ASN15169 (GOOGLE, US),

Reverse DNS

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Software

cafe /

Resource Hash

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Security Headers

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Request headers

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Redirect headers

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GET
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GOOGLE

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https://www.googleadservices.com/pagead/conversion_async.js

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Host: www.googletagmanager.com
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Protocol

Security

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Server

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connect.facebook.net/en_US/ 98 KB
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FACEBOOK

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https://connect.facebook.net/en_US/fbevents.js

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URL: https://www.duolingo.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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c0.adalyser.com/ 35 KB
12 KB 264ms
63ms Script
application/javascript 52.17.137.202
AMAZON-02

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Full URL: https://c0.adalyser.com/adalyser.js?cid=duolingo
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GET
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9814127.fls.doubleclick.net/ 0
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text/html 216.58.212.166
GOOGLE

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Full URL: https://9814127.fls.doubleclick.net/activityi;register_conversion=1;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F?
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Response headers

GET
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CLOUDFLARENET

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https://cdn.cookielaw.org/consent/55a7f100-001e-4085-87ec-1a6d522f7d67/e43d2735-b44f-43da-ae8a-a4f881b04152/en.json

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Protocol

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Response headers

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POST
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GOOGLE

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Protocol

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Response headers

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GET
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72 KB 11ms
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FACEBOOK

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https://connect.facebook.net/signals/config/1735692093320310?v=2.9.44&r=stable

Requested by

Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/fbevents.js

Protocol

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Security

QUIC, , AES_128_GCM

Server

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Reverse DNS

Software

Resource Hash

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Response headers

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GET
H3-29 200 / Show response
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1 KB 91ms
45ms Script
text/javascript 142.250.186.66
GOOGLE

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Requested by

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Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

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Software

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Response headers

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content-length: 1222
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 /
www.google.com/pagead/privacysandbox/conversion/397119219/ 0
0 16ms
14ms Image
text/html 2a00:1450:4001:82f::2004
GOOGLE

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Full URL: https://www.google.com/pagead/privacysandbox/conversion/397119219/?random=1627612838277&cv=9&fst=1627612838277&num=1&fmt=3&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg7s0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&auid=822942272.1627612838&capi=1&hn=www.googleadservices.com&bttype=purchase&async=1
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Protocol: H2
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Request headers

Referer: https://www.duolingo.com/
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Response headers

POST
H2 200 collect Show response
stats.g.doubleclick.net/j/ 4 B
464 B 44ms
16ms XHR
text/plain 2a00:1450:400c:c06::9b
GOOGLE

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Show headers Download Go to

Full URL

https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j92&tid=UA-21595814-1&cid=1424962649.1627612838&jid=1809209707&gjid=325702887&_gid=1379627078.1627612838&_u=YEBAAEAAAAAAAC~&z=1496813634

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:400c:c06::9b Brussels, Belgium, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

84e01419bd81f32ac6df0f75f49c604fda9172000a3ae432b3c47b2a6a712d80

Security Headers

Name	Value
Strict-Transport-Security	max-age=10886400; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-Type: text/plain

Response headers

pragma: no-cache
strict-transport-security: max-age=10886400; includeSubDomains; preload
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
date: Fri, 30 Jul 2021 02:40:38 GMT
content-type: text/plain
access-control-allow-origin: https://www.duolingo.com
cache-control: no-cache, no-store, must-revalidate
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 4
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 otFlat.json Show response
cdn.cookielaw.org/scripttemplates/6.16.0/assets/ 12 KB
3 KB 11ms
11ms Fetch
application/json 2606:4700::6810:9540
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdn.cookielaw.org/scripttemplates/6.16.0/assets/otFlat.json

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6810:9540 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

eb1fa7363d6e4772f7c49d67f031d68f209e66de6c3c05aade6fdc57a02505c1

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-ms-blob-type: BlockBlob
date: Fri, 30 Jul 2021 02:40:38 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
content-md5: DKM3/i+7h7Fs8cEMor3s2A==
age: 7300067
vary: Accept-Encoding
content-length: 2938
x-ms-lease-status: unlocked
last-modified: Mon, 29 Mar 2021 02:12:19 GMT
server: cloudflare
etag: 0x8D8F25814EBA7C9
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-type: application/json
access-control-allow-origin: *
x-ms-request-id: e2ae4709-e01e-0171-3087-42ec8a000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: public, max-age=691200
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 676b392f6a8f2bd2-FRA
expires: Sat, 07 Aug 2021 02:40:38 GMT

GET
H2 200 /
www.facebook.com/tr/ 44 B
147 B 8ms
6ms Image
image/gif 2a03:2880:f12d:181:face:b00c:0:25de
FACEBOOK

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.facebook.com/tr/?id=1735692093320310&ev=PageView&dl=https%3A%2F%2Fwww.duolingo.com%2F&rl=&if=false&ts=1627612838335&sw=1600&sh=1200&v=2.9.44&r=stable&ec=0&o=29&fbp=fb.1.1627612838332.997628183&it=1627612838266&coo=false&rqm=GET

Requested by

Host: www.duolingo.com
URL: https://www.duolingo.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a03:2880:f12d:181:face:b00c:0:25de Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

proxygen-bolt /

Resource Hash

10d8d42d73a02ddb877101e72fbfa15a0ec820224d97cedee4cf92d571be5caa

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
last-modified: Fri, 21 Dec 2012 00:00:01 GMT
server: proxygen-bolt
strict-transport-security: max-age=31536000; includeSubDomains
content-type: image/gif
cache-control: no-cache, must-revalidate, max-age=0
cross-origin-resource-policy: cross-origin
alt-svc: h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
content-length: 44
expires: Fri, 30 Jul 2021 02:40:38 GMT

GET
H3-29 200 ga-audiences
www.google.com/ads/ 42 B
63 B 26ms
24ms Image
image/gif 2a00:1450:4001:828::2004
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j92&tid=UA-21595814-1&cid=1424962649.1627612838&jid=1809209707&_u=YEBAAEAAAAAAAC~&z=463045795

Requested by

Host: www.duolingo.com
URL: https://www.duolingo.com/

Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:828::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma: no-cache
date: Fri, 30 Jul 2021 02:40:38 GMT
x-content-type-options: nosniff
server: cafe
timing-allow-origin: *
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control: no-cache, no-store, must-revalidate
cross-origin-resource-policy: cross-origin
content-type: image/gif
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 ga-audiences
www.google.de/ads/ 42 B
522 B 44ms
22ms Image
image/gif 2a00:1450:4001:80e::2003
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.de/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j92&tid=UA-21595814-1&cid=1424962649.1627612838&jid=1809209707&_u=YEBAAEAAAAAAAC~&z=463045795

Requested by

Host: www.duolingo.com
URL: https://www.duolingo.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:80e::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma: no-cache
date: Fri, 30 Jul 2021 02:40:38 GMT
x-content-type-options: nosniff
server: cafe
timing-allow-origin: *
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control: no-cache, no-store, must-revalidate
cross-origin-resource-policy: cross-origin
content-type: image/gif
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
312 B 253ms
253ms XHR
text/plain 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-dfd82b27.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-type: application/json

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
accept-encoding: gzip, identity
server: Jetty(9.2.z-SNAPSHOT)
access-control-max-age: 3600
access-control-allow-methods: POST, GET, OPTIONS
content-type: text/plain; charset=ISO-8859-1
access-control-allow-origin: *
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
content-length: 34

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 126ms
125ms Preflight 54.175.79.116
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Server: 54.175.79.116 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-175-79-116.compute-1.amazonaws.com
Software: Jetty(9.2.z-SNAPSHOT) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Method: POST
Access-Control-Request-Headers: content-type
Origin: https://www.duolingo.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Sec-Fetch-Mode: cors

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-length: 0
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-max-age: 3600
accept-encoding: gzip, identity
allow: GET, HEAD, POST, TRACE, OPTIONS
server: Jetty(9.2.z-SNAPSHOT)

GET
H2 200 dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F Show response
adservice.google.com/ddm/fls/i/ Frame F3FF 481 B
476 B 42ms
41ms Document
text/html 2a00:1450:4001:830::2002
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://adservice.google.com/ddm/fls/i/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Requested by

Host: 9814127.fls.doubleclick.net
URL: https://9814127.fls.doubleclick.net/activityi;dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F?

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:830::2002 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

cafe /

Resource Hash

3dbbfccb244172ca6dfe2df001f77eb33c97b21518e3d53b6b2f6b8c6446be5b

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

:method: GET
:authority: adservice.google.com
:scheme: https
:path: /ddm/fls/i/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F
pragma: no-cache
cache-control: no-cache
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: cross-site
sec-fetch-mode: navigate
sec-fetch-dest: iframe
referer: https://9814127.fls.doubleclick.net/
accept-encoding: gzip, deflate, br
accept-language: en-US
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Referer: https://9814127.fls.doubleclick.net/

Response headers

p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
timing-allow-origin: *
cross-origin-resource-policy: cross-origin
date: Fri, 30 Jul 2021 02:40:38 GMT
expires: Fri, 01 Jan 1990 00:00:00 GMT
cache-control: no-cache, must-revalidate
content-type: text/html; charset=UTF-8
pragma: no-cache
x-content-type-options: nosniff
content-encoding: gzip
server: cafe
content-length: 383
x-xss-protection: 0
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"

GET
H/1.1 200
OK p
c0.adalyser.com/tracking/track/v3/ 43 B
478 B 62ms
61ms Image
image/gif 52.17.137.202
AMAZON-02

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://c0.adalyser.com/tracking/track/v3/p?stm=1627612838394&e=lce1&url=https%3A%2F%2Fwww.duolingo.com%2F&cid=duolingo&p=%7B%22et%22%3A1627612838391%2C%22nr%22%3A%22New%22%2C%22cg%22%3A%22Direct%22%2C%22dt%22%3A%22desktop%22%2C%22so%22%3A%22direct%22%2C%22me%22%3A%22none%22%2C%22ca%22%3A%22direct%22%2C%22co%22%3A%22(not%20set)%22%2C%22ke%22%3A%22(not%20set)%22%2C%22vid%22%3A%221%22%2C%22sid%22%3A%222c397fc0-e02a-47f2-9046-6a7969bbe83e%22%2C%22duid%22%3A%222f9a2624-2015-48f4-b654-6975eec6a355%22%2C%22cw%22%3A1627612838391%7D&userAgent=Mozilla%2F5.0%20(Windows%20NT%2010.0%3B%20Win64%3B%20x64)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F89.0.4389.72%20Safari%2F537.36&domain=www.duolingo.com
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 52.17.137.202 Dublin, Ireland, ASN16509 (AMAZON-02, US),
Reverse DNS: ec2-52-17-137-202.eu-west-1.compute.amazonaws.com
Software: / Express
Resource Hash: a065920df8cc4016d67c3a464be90099c9d28ffe7c9e6ee3a18f257efc58cbd7

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

Pragma: no-cache
Date: Fri, 30 Jul 2021 02:40:38 GMT
ETag: W/"2b-B//0C13UlayirE4cP7xgqg"
X-Powered-By: Express
P3P: CP="ADMa OUR IND DSP NON COR"
Access-Control-Allow-Origin: *
Cache-Control: no-cache, no-store, must-revalidate
Access-Control-Allow-Credentials: true
Connection: keep-alive
content-type: image/gif
Access-Control-Allow-Headers: origin, content-type, accept
Content-Length: 43
Expires: 0

GET
H3-29

200

/
www.google.de/pagead/1p-conversion/397119219/
Redirect Chain

https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=1102441780&cv=9&fst=1627612838277&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&...
https://www.google.com/pagead/1p-conversion/397119219/?random=1102441780&cv=9&fst=1627612838277&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&u_w=1600&u_ah=1200&u_...
https://www.google.de/pagead/1p-conversion/397119219/?random=1102441780&cv=9&fst=1627612838277&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&u_w=1600&u_ah=1200&u_a...

42 B
64 B

54ms
27ms

Image
image/gif

2a00:1450:4001:80e::2003
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.de/pagead/1p-conversion/397119219/?random=1102441780&cv=9&fst=1627612838277&num=1&value=1&label=k0ETCJGBvf0BEPOdrr0B&guid=ON&resp=GooglemKTybQhCsO&u_h=1200&u_w=1600&u_ah=1200&u_aw=1600&u_cd=24&u_his=2&u_tz=120&u_java=false&u_nplug=0&u_nmime=0&gtm=2wg7s0&sendb=1&ig=1&frm=0&url=https%3A%2F%2Fwww.duolingo.com%2F&tiba=Duolingo%20-%20The%20world%27s%20best%20way%20to%20learn%20a%20language&auid=822942272.1627612838&capi=1&hn=www.googleadservices.com&async=1&fmt=3&ctc_id=CAIVAgAAAB0CAAAA&ct_cookie_present=false&sscte=1&crd=&is_vtc=1&ocp_id=pmYDYdnBFYOQgAeuqJmABw&cid=CAQSKQCNIrLMz8G-CwgjSZfNcSVjnR1Yv7Bd3s4eVDZU6LUiOwQKr9LgfgSG&eitems=ChEI8KOJiAYQ6cnL_KCG_tz_ARIdAEgjyc4VNP6lk4eHIM3Ob_k-YEP5lGmNZAKiBnU&random=2856230731&resp=GooglemKTybQhCsO&ipr=y

Requested by

Host: www.duolingo.com
URL: https://www.duolingo.com/

Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:80e::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

Name	Value
Content-Security-Policy	script-src 'none'; object-src 'none'
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma: no-cache
date: Fri, 30 Jul 2021 02:40:38 GMT
x-content-type-options: nosniff
server: cafe
timing-allow-origin: *
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
cache-control: no-cache, no-store, must-revalidate
cross-origin-resource-policy: cross-origin
content-security-policy: script-src 'none'; object-src 'none'
content-type: image/gif
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
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Redirect headers

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content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H3-29

200

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9814127.fls.doubleclick.net/ddm/fls/r/ Frame 10AC
Redirect Chain

https://adservice.google.de/ddm/fls/i/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duoling...
https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww...

2 KB
917 B

48ms
48ms

Document
text/html

216.58.212.166
GOOGLE

General

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Show headers Download Go to

Full URL

https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Requested by

Host: adservice.google.com
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Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

216.58.212.166 Mountain View, United States, ASN15169 (GOOGLE, US),

Reverse DNS

ams15s22-in-f166.1e100.net

Software

cafe /

Resource Hash

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Security Headers

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Request headers

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Response headers

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date: Fri, 30 Jul 2021 02:40:38 GMT
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Redirect headers

p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
timing-allow-origin: *
cross-origin-resource-policy: cross-origin
date: Fri, 30 Jul 2021 02:40:38 GMT
pragma: no-cache
expires: Fri, 01 Jan 1990 00:00:00 GMT
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content-type: text/html; charset=UTF-8
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GET
H2 200 /
insight.adsrvr.org/track/pxl/ Frame 10AC 70 B
261 B 183ms
60ms Image
image/gif 34.255.138.57
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://insight.adsrvr.org/track/pxl/?adv=h06doen&ct=0:oc83gxd&fmt=3
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URL: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F
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Request headers

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Response headers

pragma: no-cache
date: Fri, 30 Jul 2021 02:40:38 GMT
cache-control: private,no-cache, must-revalidate
x-aspnet-version: 4.0.30319
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p3p: CP="NOI DSP COR CUR ADMo DEVo PSAo PSDo OUR SAMo BUS UNI NAV"

GET
H2 200 core.js Show response
s.pinimg.com/ct/ Frame 10AC 1 KB
1 KB 105ms
32ms Script
application/javascript 2a04:4e42:54::84
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL: https://s.pinimg.com/ct/core.js
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URL: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F
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Request headers

Referer: https://9814127.fls.doubleclick.net/
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Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
fastly-restarts: 1
x-cdn: fastly
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GET
H3-29 200 fbevents.js Show response
connect.facebook.net/en_US/ Frame 10AC 98 KB
25 KB 13ms
10ms Script
application/x-javascript 2a03:2880:f02d:100:face:b00c:0:3
FACEBOOK

General

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Show headers Download Go to

Full URL

https://connect.facebook.net/en_US/fbevents.js

Requested by

Host: 9814127.fls.doubleclick.net
URL: https://9814127.fls.doubleclick.net/ddm/fls/r/dc_pre=COv0tajiifICFUj4dwodenwOLQ;src=9814127;type=hv3;cat=allpa0;ord=7057007713830;gtm=2wg7s0;auiddc=822942272.1627612838;ps=1;~oref=https%3A%2F%2Fwww.duolingo.com%2F

Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

2a03:2880:f02d:100:face:b00c:0:3 Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

Resource Hash

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Security Headers

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Request headers

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Response headers

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priority: u=3,i
expires: Sat, 01 Jan 2000 00:00:00 GMT

GET
H3-29 200 1735692093320310 Show response
connect.facebook.net/signals/config/ Frame 10AC 253 KB
72 KB 6ms
6ms Script
application/x-javascript 2a03:2880:f02d:100:face:b00c:0:3
FACEBOOK

General

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Show headers Download Go to

Full URL

https://connect.facebook.net/signals/config/1735692093320310?v=2.9.44&r=stable

Requested by

Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/fbevents.js

Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

2a03:2880:f02d:100:face:b00c:0:3 Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

Resource Hash

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Security Headers

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Strict-Transport-Security	max-age=31536000; preload; includeSubDomains
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X-Xss-Protection	0

Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

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date: Fri, 30 Jul 2021 02:40:38 GMT
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content-type: application/x-javascript; charset=utf-8
vary: Accept-Encoding
cache-control: public, max-age=1200
x-fb-rlafr: 0
priority: u=3,i
expires: Sat, 01 Jan 2000 00:00:00 GMT

GET
H3-29 200 /
www.facebook.com/tr/ Frame 10AC 44 B
91 B 7ms
7ms Image
image/gif 2a03:2880:f12d:181:face:b00c:0:25de
FACEBOOK

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.facebook.com/tr/?id=1735692093320310&ev=PageView&dl=https%3A%2F%2F9814127.fls.doubleclick.net%2Fddm%2Ffls%2Fr%2Fdc_pre%3DCOv0tajiifICFUj4dwodenwOLQ%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D7057007713830%3Bgtm%3D2wg7s0%3Bauiddc%3D822942272.1627612838%3Bps%3D1%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F&rl=https%3A%2F%2Fadservice.google.com%2F&if=true&ts=1627612838595&sw=1600&sh=1200&v=2.9.44&r=stable&ec=0&o=30&it=1627612838562&coo=false&rqm=GET

Requested by

Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

2a03:2880:f12d:181:face:b00c:0:25de Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

proxygen-bolt /

Resource Hash

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Security Headers

Name	Value
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Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
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server: proxygen-bolt
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content-type: image/gif
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priority: u=3,i
expires: Fri, 30 Jul 2021 02:40:38 GMT

GET
H2 200 main.89cd5bf4.js Show response
s.pinimg.com/ct/lib/ Frame 10AC 49 KB
17 KB 32ms
31ms Script
application/javascript 2a04:4e42:54::84
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL: https://s.pinimg.com/ct/lib/main.89cd5bf4.js
Requested by: Host: s.pinimg.com
URL: https://s.pinimg.com/ct/core.js
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2a04:4e42:54::84 , United States, ASN54113 (FASTLY, US),
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Software: /
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Request headers

Referer: https://9814127.fls.doubleclick.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-encoding: gzip
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x-cdn: fastly
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vary: Accept-Encoding, Origin
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access-control-max-age: 86400
cache-control: max-age=1209600
content-length: 17418
access-control-expose-headers: X-CDN

GET
H2 200 / Show response
ct.pinterest.com/user/ Frame 10AC 335 B
800 B 135ms
61ms XHR
application/json 104.75.88.209
AKAMAI-AS

General

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Show headers Download Go to

Full URL

https://ct.pinterest.com/user/?tid=2612728976278&pd=%7B%22em%22%3A%2224aba99b2defbb47ee981b4200313f61f3ae31541d8717bdac1e463c838939b0%22%7D&cb=1627612838689

Requested by

Host: s.pinimg.com
URL: https://s.pinimg.com/ct/lib/main.89cd5bf4.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

104.75.88.209 Frankfurt am Main, Germany, ASN16625 (AKAMAI-AS, US),

Reverse DNS

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Software

Resource Hash

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Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000 ; includeSubDomains ; preload

Request headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:38 GMT
content-encoding: gzip
vary: Accept-Encoding
x-cdn: akamai
akamai-grn: 0.936656b8.1627612838.151358eb
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access-control-allow-origin: https://9814127.fls.doubleclick.net
referrer-policy: origin
strict-transport-security: max-age=31536000 ; includeSubDomains ; preload
content-type: application/json; charset=utf-8
pragma: no-cache
access-control-expose-headers: Epik,Pin-Unauth
cache-control: no-cache,no-store,must-revalidate,max-age=0
access-control-allow-credentials: true
content-length: 308
expires: Sat, 01 Jan 2000 00:00:00 GMT

GET
H2 200 /
ct.pinterest.com/v3/ Frame 10AC 35 B
334 B 135ms
62ms Image
image/gif 104.75.88.209
AKAMAI-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://ct.pinterest.com/v3/?tid=2612728976278&pd=%7B%22em%22%3A%2224aba99b2defbb47ee981b4200313f61f3ae31541d8717bdac1e463c838939b0%22%7D&event=init&ad=%7B%22loc%22%3A%22https%3A%2F%2F9814127.fls.doubleclick.net%2Fddm%2Ffls%2Fr%2Fdc_pre%3DCOv0tajiifICFUj4dwodenwOLQ%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D7057007713830%3Bgtm%3D2wg7s0%3Bauiddc%3D822942272.1627612838%3Bps%3D1%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F%22%2C%22ref%22%3A%22https%3A%2F%2Fadservice.google.com%2F%22%2C%22if%22%3Atrue%2C%22sh%22%3A1200%2C%22sw%22%3A1600%2C%22mh%22%3A%2289cd5bf4%22%2C%22ecm_enabled%22%3Afalse%7D&cb=1627612838690

Requested by

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

104.75.88.209 Frankfurt am Main, Germany, ASN16625 (AKAMAI-AS, US),

Reverse DNS

a104-75-88-209.deploy.static.akamaitechnologies.com

Software

Resource Hash

37b17c5135a176a9474521af147d96dfa1fb4ca0f43f00d1400bd1885be3ab9b

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000 ; includeSubDomains ; preload

Request headers

Referer: https://9814127.fls.doubleclick.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

pragma: no-cache
date: Fri, 30 Jul 2021 02:40:38 GMT
referrer-policy: origin
x-cdn: akamai
akamai-grn: 0.936656b8.1627612838.151358f8
strict-transport-security: max-age=31536000 ; includeSubDomains ; preload
content-type: image/gif
access-control-allow-origin: *
cache-control: no-cache,no-store,must-revalidate,max-age=0
x-envoy-upstream-service-time: 3
content-length: 35
x-pinterest-rid: 1545046611642857
expires: Sat, 01 Jan 2000 00:00:00 GMT

POST
H2 204 / Show response
ct.pinterest.com/md/ Frame 10AC 0
275 B 136ms
64ms XHR
text/plain 104.75.88.209
AKAMAI-AS

General

Check archive.org

Show headers Download Go to

Full URL

https://ct.pinterest.com/md/

Requested by

Host: s.pinimg.com
URL: https://s.pinimg.com/ct/lib/main.89cd5bf4.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

104.75.88.209 Frankfurt am Main, Germany, ASN16625 (AKAMAI-AS, US),

Reverse DNS

a104-75-88-209.deploy.static.akamaitechnologies.com

Software

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000 ; includeSubDomains ; preload

Request headers

Referer: https://9814127.fls.doubleclick.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-Type: text/plain

Response headers

pragma: no-cache
date: Fri, 30 Jul 2021 02:40:38 GMT
referrer-policy: origin
x-cdn: akamai
akamai-grn: 0.936656b8.1627612838.15135a66
strict-transport-security: max-age=31536000 ; includeSubDomains ; preload
access-control-allow-origin: *
cache-control: no-cache,no-store,must-revalidate,max-age=0
x-envoy-upstream-service-time: 1
x-pinterest-rid: 1810186120738774
expires: Sat, 01 Jan 2000 00:00:00 GMT

GET
H3-29 200 /
www.facebook.com/tr/ Frame 10AC 44 B
88 B 6ms
6ms Image
image/gif 2a03:2880:f12d:181:face:b00c:0:25de
FACEBOOK

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.facebook.com/tr/?id=1735692093320310&ev=Microdata&dl=https%3A%2F%2F9814127.fls.doubleclick.net%2Fddm%2Ffls%2Fr%2Fdc_pre%3DCOv0tajiifICFUj4dwodenwOLQ%3Bsrc%3D9814127%3Btype%3Dhv3%3Bcat%3Dallpa0%3Bord%3D7057007713830%3Bgtm%3D2wg7s0%3Bauiddc%3D822942272.1627612838%3Bps%3D1%3B~oref%3Dhttps%253A%252F%252Fwww.duolingo.com%252F&rl=https%3A%2F%2Fadservice.google.com%2F&if=true&ts=1627612840099&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22%22%7D&cd[OpenGraph]=%7B%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=1600&sh=1200&v=2.9.44&r=stable&ec=1&o=30&it=1627612838562&coo=false&es=automatic&tm=3&rqm=GET

Protocol

H3-29

Security

QUIC, , AES_128_GCM

Server

2a03:2880:f12d:181:face:b00c:0:25de Frankfurt am Main, Germany, ASN32934 (FACEBOOK, US),

Reverse DNS

Software

proxygen-bolt /

Resource Hash

10d8d42d73a02ddb877101e72fbfa15a0ec820224d97cedee4cf92d571be5caa

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains

Request headers

Referer: https://9814127.fls.doubleclick.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Fri, 30 Jul 2021 02:40:40 GMT
last-modified: Fri, 21 Dec 2012 00:00:01 GMT
server: proxygen-bolt
strict-transport-security: max-age=31536000; includeSubDomains
content-type: image/gif
cache-control: no-cache, must-revalidate, max-age=0
cross-origin-resource-policy: cross-origin
content-length: 44
alt-svc: h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
priority: u=3,i
expires: Fri, 30 Jul 2021 02:40:40 GMT

OPTIONS batch
excess.duolingo.com/ Frame 0
0

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain: excess.duolingo.com
URL: https://excess.duolingo.com/batch

Verdicts & Comments Add Verdict or Comment

99 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

22 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path	Expires	Name / Value
.duolingo.com/	1970-01-20 00:26:04	Name: __adal_ca Value: so%3Ddirect%26me%3Dnone%26ca%3Ddirect%26co%3D%28not%2520set%29%26ke%3D%28not%2520set%29
.duolingo.com/	1970-01-20 13:38:04	Name: __adal_id Value: 2f9a2624-2015-48f4-b654-6975eec6a355.1627612838.1.1627612838.1627612838.2c397fc0-e02a-47f2-9046-6a7969bbe83e
.doubleclick.net/	1970-01-20 05:28:28	Name: IDE Value: AHWqTUldRDV5QMDthv1t84FQ1o555Xvxo164j7ekBMy2FfCwvuSMS5AFJtnpH4X1
.duolingo.com/	1970-01-19 20:06:54	Name: __adal_ses Value: *
.duolingo.com/	1970-01-20 00:26:04	Name: OptanonConsent Value: isIABGlobal=false&datestamp=Fri+Jul+30+2021+04%3A40%3A38+GMT%2B0200+(Central+European+Summer+Time)&version=6.16.0&consentId=ece2919f-09cd-44eb-8b41-bba67e2f0b5f&interactionCount=0&landingPath=https%3A%2F%2Fwww.duolingo.com%2F&groups=C0001%3A1%2CC0002%3A0%2CC0003%3A0%2CC0004%3A0&hosts=H3%3A1%2CH14%3A1%2CH11%3A0%2CH1%3A0%2CH15%3A0%2CH6%3A0%2CH2%3A0%2CH7%3A0%2CH16%3A0%2CH9%3A0%2CH18%3A0%2CH10%3A0%2CH12%3A0%2CH13%3A0
.duolingo.com/	1970-01-19 22:16:28	Name: _fbp Value: fb.1.1627612838332.997628183
www.duolingo.com/	1970-01-19 20:16:57	Name: AWSALBCORS Value: mi8YbPCDvI4Rf915po2kahLC0tKrn9uDUF3kgLq+eYkNVfy4MvQlHeBwjwoz/kA5BpH46huNX01X6V5NugqKKxKvPLVZbNqF8F1ZlNSoijbtUg6RCbtThHbtGR+d
.duolingo.com/	1970-01-19 22:16:28	Name: _gcl_au Value: 1.1.822942272.1627612838
.duolingo.com/	1970-01-20 04:52:28	Name: lp Value: splash
www.duolingo.com/	1969-12-31 23:59:59	Name: wuuid Value: 828e6c2d-e012-4cec-b11e-755ac3d92a0e
www.duolingo.com/	1970-01-19 20:16:57	Name: AWSALB Value: mi8YbPCDvI4Rf915po2kahLC0tKrn9uDUF3kgLq+eYkNVfy4MvQlHeBwjwoz/kA5BpH46huNX01X6V5NugqKKxKvPLVZbNqF8F1ZlNSoijbtUg6RCbtThHbtGR+d
.duolingo.com/	1970-01-20 04:52:28	Name: lr Value:
.duolingo.com/	1970-01-19 20:16:57	Name: __adal_cw Value: 1627612838391
.duolingo.com/	1970-01-20 04:52:28	Name: initial_referrer Value: $direct
.duolingo.com/	1970-01-19 20:06:52	Name: _gat_UA-21595814-1 Value: 1
.duolingo.com/	1970-01-19 20:08:19	Name: _gid Value: GA1.2.1379627078.1627612838
.duolingo.com/	1970-01-20 04:52:28	Name: lu Value: https://www.duolingo.com/
.duolingo.com/	1970-01-20 04:52:28	Name: logged_out_uuid Value: a6377887-cb96-4a7c-8d6e-d129d9f4cac7
.duolingo.com/	1970-01-19 22:16:28	Name: duocsexp Value: web_delight_preload_font~control~
.duolingo.com/	1970-01-20 13:38:04	Name: _ga Value: GA1.2.1424962649.1627612838
.duolingo.com/	1970-01-20 04:52:28	Name: tsl Value: 1627612837577
.duolingo.com/	1970-01-20 04:52:28	Name: lang Value: en

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header	Value
X-Frame-Options	SAMEORIGIN

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

9814127.fls.doubleclick.net
adservice.google.com
adservice.google.de
brb.duolingo.com
c0.adalyser.com
cdn.cookielaw.org
client.perimeterx.net
connect.facebook.net
ct.pinterest.com
d35aaqx5ub95lt.cloudfront.net
duolingo.com
excess.duolingo.com
geolocation.onetrust.com
googleads.g.doubleclick.net
insight.adsrvr.org
s.pinimg.com
stats.g.doubleclick.net
stories.duolingo.com
www.duolingo.com
www.facebook.com
www.google-analytics.com
www.google.com
www.google.de
www.googleadservices.com
www.googletagmanager.com
excess.duolingo.com
104.75.88.209
13.224.193.74
142.250.186.66
151.101.13.40
184.72.124.184
216.58.212.166
2600:9000:21f3:ac00:7:60cd:e840:21
2606:4700:10::6814:b844
2606:4700::6810:9540
2a00:1450:4001:80e::2003
2a00:1450:4001:80f::200e
2a00:1450:4001:828::2004
2a00:1450:4001:829::2002
2a00:1450:4001:82b::2002
2a00:1450:4001:82b::2008
2a00:1450:4001:82f::2004
2a00:1450:4001:830::2002
2a00:1450:400c:c06::9b
2a03:2880:f02d:100:face:b00c:0:3
2a03:2880:f12d:181:face:b00c:0:25de
2a04:4e42:54::84
34.255.138.57
44.195.198.174
52.1.85.20
52.17.137.202
54.175.79.116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768d56cc24cea77508a49f9842312868d47d97815e45a812042db2d6618f9bac
7c79516b77a39ed17ad76e32e68901b2ad0f9f2ceaf96c2571c8e50fc9b0b15d
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eb1fa7363d6e4772f7c49d67f031d68f209e66de6c3c05aade6fdc57a02505c1
eb6f2fd06b5aa6242490e6649ebce919c549183037200adb69b1d531dcb8fe78
ec078f79e27c3ad2f41eb5340fa93539fa32eaad4eb193ada5c23a497d3b939c
ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

www.duolingo.com Open in urlscan Pro 52.1.85.20 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page URL History Show full URLs

Detected technologies

Page Statistics

102 Requests

99 %HTTPS

58 %IPv6

17 Domains

25 Subdomains

24 IPs

4 Countries

1036 kBTransfer

3486 kBSize

22 Cookies

47 Outgoing links

Page URL History

Redirected requests

102 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

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Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

www.duolingo.com Open in urlscan Pro
52.1.85.20 Public Scan

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Full Image

102
Requests

99 %
HTTPS

58 %
IPv6

17
Domains

25
Subdomains

24
IPs

4
Countries

1036 kB
Transfer

3486 kB
Size

22
Cookies

102 HTTP transactions
0 data transactions