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

Go To Rescan
Add Verdict Report

Submitted URL:
http://duolingo.com/
Effective URL:
https://www.duolingo.com/
Submission: On February 29 via manual (February 29th 2024, 12:33:20 pm UTC) from SG — Scanned from SG

Summary HTTP 119 Redirects Links 49 Behaviour Indicators

Summary

This website contacted 20 IPs in 3 countries across 14 domains to perform 119 HTTP transactions. The main IP is 18.205.241.212, located in Ashburn, United States and belongs to AMAZON-AES, US. The main domain is www.duolingo.com. The Cisco Umbrella rank of the primary domain is 18044.
TLS certificate: Issued by Go Daddy Secure Certificate Authority... on November 21st 2023. 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)
4	18.205.241.212 18.205.241.212	14618 (AMAZON-AES) (AMAZON-AES)
4	104.18.130.236 104.18.130.236	13335 (CLOUDFLAR...) (CLOUDFLARENET)
3	142.251.175.94 142.251.175.94	15169 (GOOGLE) (GOOGLE)
64	18.155.70.148 18.155.70.148	16509 (AMAZON-02) (AMAZON-02)
6	74.125.200.94 74.125.200.94	15169 (GOOGLE) (GOOGLE)
16	54.196.31.19 54.196.31.19	14618 (AMAZON-AES) (AMAZON-AES)
3	74.125.200.97 74.125.200.97	15169 (GOOGLE) (GOOGLE)
2	74.125.130.84 74.125.130.84	15169 (GOOGLE) (GOOGLE)
1	13.227.254.74 13.227.254.74	16509 (AMAZON-02) (AMAZON-02)
1	13.227.254.53 13.227.254.53	16509 (AMAZON-02) (AMAZON-02)
1	172.64.155.119 172.64.155.119	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	74.125.24.100 74.125.24.100	15169 (GOOGLE) (GOOGLE)
2	157.240.235.1 157.240.235.1	32934 (FACEBOOK) (FACEBOOK)
1	216.239.32.181 216.239.32.181	15169 (GOOGLE) (GOOGLE)
2	172.217.194.154 172.217.194.154	15169 (GOOGLE) (GOOGLE)
3	74.125.24.94 74.125.24.94	15169 (GOOGLE) (GOOGLE)
1	74.125.200.154 74.125.200.154	15169 (GOOGLE) (GOOGLE)
1 3	74.125.68.104 74.125.68.104	15169 (GOOGLE) (GOOGLE)
1	157.240.235.35 157.240.235.35	32934 (FACEBOOK) (FACEBOOK)
1 1	142.251.10.156 142.251.10.156	15169 (GOOGLE) (GOOGLE)
119	20

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

4 18.205.241.212 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-18-205-241-212.compute-1.amazonaws.com

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

4 104.18.130.236 (None, )

ASN13335 (CLOUDFLARENET, US)

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

3 142.251.175.94 (Farmingdale, United States)

ASN15169 (GOOGLE, US)
PTR: sh-in-f94.1e100.net

www.recaptcha.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

64 18.155.70.148 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-18-155-70-148.sin52.r.cloudfront.net

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

6 74.125.200.94 (United States)

ASN15169 (GOOGLE, US)
PTR: sa-in-f94.1e100.net

www.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
fonts.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

16 54.196.31.19 (Ashburn, United States)

ASN14618 (AMAZON-AES, US)
PTR: ec2-54-196-31-19.compute-1.amazonaws.com

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

3 74.125.200.97 (United States)

ASN15169 (GOOGLE, US)
PTR: sa-in-f97.1e100.net

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

2 74.125.130.84 (United States)

ASN15169 (GOOGLE, US)
PTR: sb-in-f84.1e100.net

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

1 13.227.254.74 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-13-227-254-74.sin52.r.cloudfront.net

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

1 13.227.254.53 (United States)

ASN16509 (AMAZON-02, US)
PTR: server-13-227-254-53.sin52.r.cloudfront.net

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

1 172.64.155.119 (San Francisco, United States)

ASN13335 (CLOUDFLARENET, US)

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

2 74.125.24.100 (United States)

ASN15169 (GOOGLE, US)
PTR: sf-in-f100.1e100.net

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

2 157.240.235.1 (Singapore, Singapore)

ASN32934 (FACEBOOK, US)
PTR: xx-fbcdn-shv-04-sin6.fbcdn.net

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

1 216.239.32.181 (United States)

ASN15169 (GOOGLE, US)

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

2 172.217.194.154 (United States)

ASN15169 (GOOGLE, US)
PTR: si-in-f154.1e100.net

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

3 74.125.24.94 (United States)

ASN15169 (GOOGLE, US)
PTR: sf-in-f94.1e100.net

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

1 74.125.200.154 (United States)

ASN15169 (GOOGLE, US)
PTR: sa-in-f154.1e100.net

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

3 74.125.68.104 (United States) 1 redirects

ASN15169 (GOOGLE, US)
PTR: sc-in-f104.1e100.net

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

1 157.240.235.35 (Singapore, Singapore)

ASN32934 (FACEBOOK, US)
PTR: edge-star-mini-shv-04-sin6.facebook.com

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

1 142.251.10.156 (Queens, United States) 1 redirects

ASN15169 (GOOGLE, US)
PTR: sd-in-f156.1e100.net

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

	Apex Domain Subdomains	Transfer
64	cloudfront.net d35aaqx5ub95lt.cloudfront.net	2 MB
23	duolingo.com 1 redirects duolingo.com — Cisco Umbrella Rank: 6390 www.duolingo.com — Cisco Umbrella Rank: 18044 excess.duolingo.com — Cisco Umbrella Rank: 7840 brb.duolingo.com — Cisco Umbrella Rank: 7489 zombie.duolingo.com — Cisco Umbrella Rank: 10934	15 KB
6	google.com 1 redirects accounts.google.com — Cisco Umbrella Rank: 24 analytics.google.com — Cisco Umbrella Rank: 159 www.google.com — Cisco Umbrella Rank: 2	90 KB
6	gstatic.com www.gstatic.com fonts.gstatic.com	453 KB
4	cookielaw.org cdn.cookielaw.org — Cisco Umbrella Rank: 330	114 KB
3	google.com.sg www.google.com.sg — Cisco Umbrella Rank: 13546	669 B
3	doubleclick.net 1 redirects stats.g.doubleclick.net — Cisco Umbrella Rank: 85 googleads.g.doubleclick.net — Cisco Umbrella Rank: 35	2 KB
3	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 40	276 KB
3	recaptcha.net www.recaptcha.net — Cisco Umbrella Rank: 1227	30 KB
2	facebook.net connect.facebook.net — Cisco Umbrella Rank: 176	69 KB
2	google-analytics.com www.google-analytics.com — Cisco Umbrella Rank: 31	21 KB
1	facebook.com www.facebook.com — Cisco Umbrella Rank: 102	185 B
1	googleadservices.com www.googleadservices.com — Cisco Umbrella Rank: 136	2 KB
1	onetrust.com geolocation.onetrust.com — Cisco Umbrella Rank: 554	295 B
119	14

	Domain	Requested by
64	d35aaqx5ub95lt.cloudfront.net	www.duolingo.com d35aaqx5ub95lt.cloudfront.net
16	excess.duolingo.com	d35aaqx5ub95lt.cloudfront.net
4	www.gstatic.com	www.recaptcha.net www.gstatic.com
4	cdn.cookielaw.org	www.duolingo.com cdn.cookielaw.org d35aaqx5ub95lt.cloudfront.net
4	www.duolingo.com	d35aaqx5ub95lt.cloudfront.net
3	www.google.com	1 redirects www.gstatic.com www.duolingo.com
3	www.google.com.sg	www.duolingo.com
3	www.googletagmanager.com	d35aaqx5ub95lt.cloudfront.net www.googletagmanager.com
3	www.recaptcha.net	www.duolingo.com www.gstatic.com www.recaptcha.net
2	fonts.gstatic.com	www.recaptcha.net
2	stats.g.doubleclick.net	www.googletagmanager.com d35aaqx5ub95lt.cloudfront.net
2	connect.facebook.net	www.duolingo.com connect.facebook.net
2	www.google-analytics.com	www.googletagmanager.com d35aaqx5ub95lt.cloudfront.net
2	accounts.google.com	d35aaqx5ub95lt.cloudfront.net accounts.google.com
1	googleads.g.doubleclick.net	1 redirects
1	www.facebook.com	www.duolingo.com
1	www.googleadservices.com	www.googletagmanager.com
1	analytics.google.com	www.googletagmanager.com
1	geolocation.onetrust.com	d35aaqx5ub95lt.cloudfront.net
1	zombie.duolingo.com	d35aaqx5ub95lt.cloudfront.net
1	brb.duolingo.com	d35aaqx5ub95lt.cloudfront.net
1	duolingo.com	1 redirects
119	22

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

Domain
itunes.apple.com
play.google.com
englishtest.duolingo.com
schools.duolingo.com
blog.duolingo.com
careers.duolingo.com
research.duolingo.com
design.duolingo.com
store.duolingo.com
press.duolingo.com
investors.duolingo.com
podcast.duolingo.com
support.duolingo.com
duolingoschools.zendesk.com
status.duolingo.com
www.instagram.com
www.facebook.com
twitter.com
www.youtube.com
ar.duolingo.com
bn.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
te.duolingo.com
th.duolingo.com
tl.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	`2023-11-21` - `2024-12-22`	a year	crt.sh
cookielaw.org Cloudflare Inc ECC CA-3	`2023-04-01` - `2024-03-31`	a year	crt.sh
misc.google.com GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
*.cloudfront.net Amazon RSA 2048 M01	`2023-10-10` - `2024-09-19`	a year	crt.sh
*.gstatic.com GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
*.google-analytics.com GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
accounts.google.com GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
onetrust.com Cloudflare Inc ECC CA-3	`2023-11-13` - `2024-11-12`	a year	crt.sh
*.facebook.com DigiCert SHA2 High Assurance Server CA	`2023-12-08` - `2024-03-07`	3 months	crt.sh
*.google.com GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
*.g.doubleclick.net GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
*.google.com.sg GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
www.googleadservices.com GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh
www.google.com GTS CA 1C3	`2024-02-05` - `2024-04-29`	3 months	crt.sh

This page contains 2 frames:

Primary Page: https://www.duolingo.com/
Frame ID: C7F42FA3CCFE1C93AE31887DAA998696
Requests: 104 HTTP requests in this frame

Frame: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=vj7hFxe2iNgbe-u95xTozOXW&size=invisible&cb=xdejqs6942ba
Frame ID: D9BB6F84DD1A20CE1EFFEAD2C3AB0BFE
Requests: 8 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

多邻国 - 全球数亿语言学习者的口碑选择badge-app-storebadge-app-store

Page URL History Show full URLs

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

Detected technologies

Google Sign-in (Social logins) Expand

Overall confidence: 100%
Detected patterns

accounts\.google\.com/gsi/client

React (JavaScript Frameworks) Expand

Overall confidence: 100%
Detected patterns

<[^>]+data-react

Facebook (Widgets) Expand

Overall confidence: 100%
Detected patterns

//connect\.facebook\.([a-z]+)/[^/]*/[a-z]*\.js

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

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

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtm\.js
googletagmanager\.com/gtag/js

OneTrust (Cookie compliance) Expand

Overall confidence: 100%
Detected patterns

cdn\.cookielaw\.org
otSDKStub\.js

Page Statistics

119
Requests

99 %
HTTPS

0 %
IPv6

14
Domains

22
Subdomains

20
IPs

3
Countries

3129 kB
Transfer

13412 kB
Size

19
Cookies

49 Outgoing links

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

URL: https://itunes.apple.com/cn/app/duo-lin-guo-duolingo-mian/id570060128?mt=8&at=1010lwpr
Title: badge-app-store下载请前往App Store

Search URL Search Domain Scan URL

URL: https://play.google.com/store/apps/details?hl=zh&id=com.duolingo&referrer=utm_source%3Dduolingo.com%26utm_medium%3Dduolingo_web%26utm_content%3Ddownload_button%26utm_campaign%3Dsplash
Title: badge-app-store下载请前往Google Play

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/zs
Title: 认证英语水平

Search URL Search Domain Scan URL

URL: https://schools.duolingo.com/
Title: 创建班级马上开始

Search URL Search Domain Scan URL

URL: https://blog.duolingo.com/duolingo-launches-math-app
Title: 用 Math 学数学

Search URL Search Domain Scan URL

URL: https://careers.duolingo.com/about
Title: 团队

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://careers.duolingo.com/
Title: 招聘贤才

Search URL Search Domain Scan URL

URL: https://design.duolingo.com/
Title: 商标与设计

Search URL Search Domain Scan URL

URL: https://store.duolingo.com/
Title: 宝石小店

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://investors.duolingo.com/
Title: 投资者

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://support.duolingo.com/hc/zh-cn
Title: 多邻国常见问题

Search URL Search Domain Scan URL

URL: https://duolingoschools.zendesk.com/hc/en-us
Title: Duolingo for Schools 常见问题

Search URL Search Domain Scan URL

URL: https://englishtest.duolingo.com/faq
Title: Duolingo English Test常见问题

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

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

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://bn.duolingo.com/
Title: বাংলা

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://te.duolingo.com/
Title: తెలుగు

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://tl.duolingo.com/
Title: Tagalog

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 115

https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&npa=0&pscdl=noapi&auid=27194993.1709209996&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=COy7sQII4b2xAg&eitems=ChAIgPOArwYQlM2O1ZON4NoQEh0A67BuL6I1C37cqrvtHDcm2bbdqxagzJpg4IRzAA&pscrd=EkxDaEVJZ1BPQXJ3WVFvZGVZblpIV3BZZTBBUklrQUVtdEhCcDM5S1QzWXlXOEVsU0czbGhBNWwxU1hyOFNfUDZrNTl1NG9YQjZ5RjFNGldDaEVJZ1BPQXJ3WVF4Tl9EMTlxanFidTFBUklzQUlTRGlkY2xtb2FWSzdWZ1Rud0NzQlNFWXNuRzJXWm55enhuTFV4czNtNlVFVkpRdGZWd0ZyS01EaU0iEwjM05-1x9CEAxViAYMDHew5CBEyAggDMgIIBDICCAcyAggIMgIICTICCAoyAggC HTTP 302
https://www.google.com/pagead/1p-conversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&npa=0&pscdl=noapi&auid=27194993.1709209996&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=COy7sQII4b2xAg&pscrd=EkxDaEVJZ1BPQXJ3WVFvZGVZblpIV3BZZTBBUklrQUVtdEhCcDM5S1QzWXlXOEVsU0czbGhBNWwxU1hyOFNfUDZrNTl1NG9YQjZ5RjFNGldDaEVJZ1BPQXJ3WVF4Tl9EMTlxanFidTFBUklzQUlTRGlkY2xtb2FWSzdWZ1Rud0NzQlNFWXNuRzJXWm55enhuTFV4czNtNlVFVkpRdGZWd0ZyS01EaU0iEwjM05-1x9CEAxViAYMDHew5CBEyAggDMgIIBDICCAcyAggIMgIICTICCAoyAggC&is_vtc=1&cid=CAQSGwB7FLtqRmdcUvbvuphRz6BLFageUlVG9N1mXA&eitems=ChAIgPOArwYQlM2O1ZON4NoQEh0A67BuL1dkGRgDJQUqQmvE8_i22pcx5nIsKq2oHg&random=1689626668 HTTP 302
https://www.google.com.sg/pagead/1p-conversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&npa=0&pscdl=noapi&auid=27194993.1709209996&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=COy7sQII4b2xAg&pscrd=EkxDaEVJZ1BPQXJ3WVFvZGVZblpIV3BZZTBBUklrQUVtdEhCcDM5S1QzWXlXOEVsU0czbGhBNWwxU1hyOFNfUDZrNTl1NG9YQjZ5RjFNGldDaEVJZ1BPQXJ3WVF4Tl9EMTlxanFidTFBUklzQUlTRGlkY2xtb2FWSzdWZ1Rud0NzQlNFWXNuRzJXWm55enhuTFV4czNtNlVFVkpRdGZWd0ZyS01EaU0iEwjM05-1x9CEAxViAYMDHew5CBEyAggDMgIIBDICCAcyAggIMgIICTICCAoyAggC&is_vtc=1&cid=CAQSGwB7FLtqRmdcUvbvuphRz6BLFageUlVG9N1mXA&eitems=ChAIgPOArwYQlM2O1ZON4NoQEh0A67BuL1dkGRgDJQUqQmvE8_i22pcx5nIsKq2oHg&random=1689626668&ipr=y

119 HTTP transactions
1 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/

10 KB
5 KB

963ms
345ms

Document
text/html

18.205.241.212
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

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

Reverse DNS

ec2-18-205-241-212.compute-1.amazonaws.com

Software

duo-api /

Resource Hash

65b0266ead1e37e82a65ef886b6d38710ed0fda60c57301435cd93d1ccdca7af

Security Headers

Name	Value
X-Frame-Options	SAMEORIGIN

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
accept-language: zh-SG,zh;q=0.9

Response headers

cache-control: no-store, no-cache, must-revalidate, proxy-revalidate
content-encoding: gzip
content-type: text/html; charset=UTF-8
date: Thu, 29 Feb 2024 12:33:12 GMT
expires: 0
no-retry: 1
pragma: no-cache
server: duo-api
surrogate-control: no-store
x-duo-request-host: www.duolingo.com
x-envoy-upstream-service-time: 56
x-frame-options: SAMEORIGIN
x-runtime: 0.05423
x-tid: ffff023e65e079490109
x-ws: UK

Redirect headers

Connection: keep-alive
Content-Length: 193
Content-Type: text/html
Date: Thu, 29 Feb 2024 12:30:38 GMT
Location: https://www.duolingo.com
Server: nginx/1.4.6 (Ubuntu)

GET
H2 200 otSDKStub.js Show response
cdn.cookielaw.org/scripttemplates/ 21 KB
7 KB 576ms
100ms Script
application/javascript 104.18.130.236
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

104.18.130.236 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

5be2dfa172d505acb197760b55c4731347cc239a7a046013c251948bb8214dbc

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

x-ms-blob-type: BlockBlob
date: Thu, 29 Feb 2024 12:33:12 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
content-md5: OKrCs7nhvutcs03VCUskmw==
age: 40334
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-length: 6841
x-ms-lease-status: unlocked
last-modified: Tue, 27 Feb 2024 03:06:26 GMT
server: cloudflare
etag: 0x8DC37411679B650
vary: Accept-Encoding
content-type: application/javascript
access-control-allow-origin: *
x-ms-request-id: 3633ee45-101e-00a5-122a-696ff9000000
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=86400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 85d0ef37e97d3fec-SIN

GET
H2 200 enterprise.js Show response
www.recaptcha.net/recaptcha/ 1 KB
1 KB 470ms
59ms Script
text/javascript 142.251.175.94
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.recaptcha.net/recaptcha/enterprise.js?render=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI

Requested by

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

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

142.251.175.94 Farmingdale, United States, ASN15169 (GOOGLE, US),

Reverse DNS

sh-in-f94.1e100.net

Software

GSE /

Resource Hash

428acc49c8711bb871c1050461006adbf66fa3892bd865876dd526b8609ab6fb

Security Headers

Name	Value
Content-Security-Policy	frame-ancestors 'self'
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	1; mode=block

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Thu, 29 Feb 2024 12:33:12 GMT
content-encoding: gzip
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self'
server: GSE
x-frame-options: SAMEORIGIN
content-type: text/javascript; charset=utf-8
cache-control: private, max-age=300
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection: 1; mode=block
expires: Thu, 29 Feb 2024 12:33:12 GMT

GET
H2 200 manifest-2525438f.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 12 KB
6 KB 65ms
64ms Script
application/javascript 18.155.70.148
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/manifest-2525438f.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
Resource Hash: 5e78e04cc4ad51ba96789cbe7fa68d858ea081418f6c03b078ec873aae8d126a

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Mon, 26 Feb 2024 18:55:03 GMT
content-encoding: gzip
via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Mon, 26 Feb 2024 18:33:22 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 236291
etag: "6cc86ac5b08f287568e587b1a9441d0e"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: application/javascript
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 6099
x-amz-cf-id: A4D9rF6KwGBl0kkHUjzhUnrAaEn9CKUfClf0HtT14Y67hhTm-wnKuA==

GET
H2 200 features-aaa1ae8d.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 3 KB
2 KB 57ms
56ms Script
application/javascript 18.155.70.148
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/features-aaa1ae8d.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
Resource Hash: 82b4dd87639d0a3f359c2d929e7bd6b250e90d5a985f3b261a9411f3014caa5d

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Thu, 15 Feb 2024 19:06:36 GMT
content-encoding: gzip
via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Thu, 15 Feb 2024 19:03:16 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 1185998
etag: "c75a6633774bfc799186be1d71835ac9"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: application/javascript
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 1140
x-amz-cf-id: sUCF7plPTd80nBE9utyT4KDI_SgB7ZUxb-ZTsHkX36-L4tnO91GkXg==

GET
H2 200 8553-34f8e48e.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 24 KB
9 KB 59ms
57ms Script
application/javascript 18.155.70.148
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/8553-34f8e48e.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
Resource Hash: c7a707567193a77a2953d537c8ca1bd697515b53baa65967a68fdbb9345b373f

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Wed, 07 Feb 2024 12:44:27 GMT
content-encoding: gzip
via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Wed, 07 Feb 2024 00:07:49 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 1900127
etag: "0b42a611684896dfcf7cfc72edc0fb72"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: application/javascript
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 9288
x-amz-cf-id: Vy0T8PHYHZUiu-39wlt3FT_upL7R1pbLm3qASvHe91uIac-PovVycQ==

GET
H2 200 polyfills-d1e2cb95.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 371 B
628 B 60ms
58ms Script
application/javascript 18.155.70.148
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/polyfills-d1e2cb95.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
Resource Hash: cfff8569bb27bee3dcbccaba435f5f8eb724b8052d64ab2d89c5c31f172813c8

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Mon, 12 Feb 2024 20:30:18 GMT
content-encoding: gzip
via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Mon, 12 Feb 2024 19:29:26 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 1440176
etag: "68f9e1c58cf5415d5cd04b41da7beef2"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: application/javascript
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 233
x-amz-cf-id: PkKwbxiKWAbi4Lu2eMB-tgr4cbGUaIlJGhVb5oqwkx3gkNMjFpDtRA==

GET
H2 200 5189-751af635.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 269 KB
102 KB 504ms
502ms Script
application/javascript 18.155.70.148
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/5189-751af635.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
Resource Hash: 5367e043c085f47f7641887f3803c0af1f72456979dfa57ff91133d90a656ca2

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Wed, 14 Feb 2024 23:27:02 GMT
content-encoding: gzip
via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Wed, 14 Feb 2024 21:43:03 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 1256772
etag: "3d9295e1925cd037239a1348fdd69789"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: application/javascript
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 103542
x-amz-cf-id: wAZBZfHLVZhoeMJ2Rz1HxBp8jgF9-QHymWclwmczxPwesp7qcOW5ow==

GET
H2 200 zh-CN-7aee23dc.js Show response
d35aaqx5ub95lt.cloudfront.net/js/strings/ 20 KB
4 KB 502ms
501ms Script
application/javascript 18.155.70.148
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/strings/zh-CN-7aee23dc.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
Resource Hash: ec7c51643163e3322d738a064a0ba9c127a2133e8cb2294e2147c7399097914e

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Sat, 17 Feb 2024 20:02:19 GMT
content-encoding: gzip
via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Fri, 16 Feb 2024 23:00:22 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 1009855
etag: "cbe5171a7db5d788204a7655d9277de1"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: application/javascript
cache-control: max-age=315360000
accept-ranges: bytes
content-length: 3807
x-amz-cf-id: dAg01pz2bGrzf7a630G1ltQU47zI9Hy33b5Z768s3Q8cHM4n9f3Pmg==

GET
H2 200 6039-c20444f4.js Show response
d35aaqx5ub95lt.cloudfront.net/js/ 706 KB
225 KB 122ms
121ms Script
application/javascript 18.155.70.148
AMAZON-02

General

Check archive.org

Show headers Download Go to

Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
Resource Hash: 72af9704f1bb65463332064fdae6d31f195e51b4c050621ce53d58bfb6e53918

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Sat, 17 Feb 2024 17:44:02 GMT
content-encoding: gzip
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AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/js/app-3fa851b2.js
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AMAZON-02

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AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/css/app-770c833f.css
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Full URL

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Full URL

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Requested by

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Response headers

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AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/vendor/b391a1740855adb49e1bfc5fbe836c5c.woff2
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AMAZON-02

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Full URL: https://d35aaqx5ub95lt.cloudfront.net/vendor/c1ebba64155e95ff69b9b3efb15c219a.woff2
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Response headers

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GET
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General

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Full URL: data:truncated
Protocol: DATA
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Reverse DNS
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Response headers

Content-Type: text/javascript

OPTIONS
H2 200 batch
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0 1867ms
687ms Preflight 54.196.31.19
AMAZON-AES

General

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Full URL: https://excess.duolingo.com/batch
Protocol: H2
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Resource Hash

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OPTIONS
H2 200 batch
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0 1861ms
688ms Preflight 54.196.31.19
AMAZON-AES

General

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Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Resource Hash

Request headers

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OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 1860ms
688ms Preflight 54.196.31.19
AMAZON-AES

General

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Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Request headers

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OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 1857ms
687ms Preflight 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

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Response headers

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OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 1855ms
687ms Preflight 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

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Sec-Fetch-Mode: cors
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Response headers

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server: Jetty(9.4.53.v20231009)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 1853ms
686ms Preflight 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

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Response headers

accept-encoding: gzip, identity
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server: Jetty(9.4.53.v20231009)

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 1853ms
688ms Preflight 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

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

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Full URL

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AMAZON-AES

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AMAZON-02

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AMAZON-02

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AMAZON-02

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Show headers Download Go to Show image

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AMAZON-02

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AMAZON-02

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AMAZON-02

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AMAZON-02

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AMAZON-02

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AMAZON-02

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AMAZON-02

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AMAZON-02

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AMAZON-02

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AMAZON-02

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via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Fri, 16 Feb 2024 23:00:19 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 1018102
etag: "5695a666ebdb86ba80514d6434b534cf"
x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/svg+xml
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content-length: 16956
x-amz-cf-id: 9lKPkj8edPgKh6MiFzDBhP_t_WtbNEpcxdqk0m_rMnK2L8GrgcwMIw==

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 307ms
306ms XHR
text/plain 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-196-31-19.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-type: application/json

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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
311 B 315ms
314ms XHR
text/plain 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-196-31-19.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-type: application/json

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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
311 B 308ms
307ms XHR
text/plain 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Request headers

Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-type: application/json

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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
311 B 305ms
303ms XHR
text/plain 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-196-31-19.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-type: application/json

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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
311 B 298ms
296ms XHR
text/plain 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Request headers

Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-type: application/json

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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
311 B 309ms
307ms XHR
text/plain 54.196.31.19
AMAZON-AES

General

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Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Requested by: Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
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Software: Jetty(9.4.53.v20231009) /
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Request headers

Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-type: application/json

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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
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GET
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d35aaqx5ub95lt.cloudfront.net/images/splash/ 345 B
627 B 905ms
904ms Image
image/svg+xml 18.155.70.148
AMAZON-02

General

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Show headers Download Go to Show image

Full URL: https://d35aaqx5ub95lt.cloudfront.net/images/splash/c6eae48dd48246c89e415b89f9e55282.svg
Requested by: Host: www.duolingo.com
URL: https://www.duolingo.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 18.155.70.148 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS: server-18-155-70-148.sin52.r.cloudfront.net
Software: AmazonS3 /
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Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Wed, 14 Feb 2024 09:27:12 GMT
content-encoding: gzip
via: 1.1 5f0e4b6c5dc81a6ef5ba5add70d69fb0.cloudfront.net (CloudFront)
last-modified: Tue, 13 Feb 2024 23:10:41 GMT
server: AmazonS3
x-amz-cf-pop: SIN52-P1
age: 1307163
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x-amz-server-side-encryption: AES256
x-cache: Hit from cloudfront
content-type: image/svg+xml
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x-amz-cf-id: 3UYVDrNU_Eo-79ZWoun8cryzwgpI8SFgtn6VDkntUF2TQXJfAyk3_g==

GET
H2 200 location Show response
geolocation.onetrust.com/cookieconsentpub/v1/geo/ 59 B
295 B 1045ms
144ms XHR
application/json 172.64.155.119
CLOUDFLARENET

General

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Full URL

https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

172.64.155.119 San Francisco, United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name	Value
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Request headers

accept: application/json
Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Thu, 29 Feb 2024 12:33:14 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-encoding: gzip
server: cloudflare
vary: Accept-Encoding
access-control-allow-methods: GET, OPTIONS
content-type: application/json
access-control-allow-origin: *
cf-ray: 85d0ef43eea43df6-SIN
access-control-allow-headers: Content-Type

GET
H2 200 anchor Show response
www.recaptcha.net/recaptcha/enterprise/ Frame D9BB 46 KB
29 KB 711ms
710ms Document
text/html 142.251.175.94
GOOGLE

General

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Full URL

https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=vj7hFxe2iNgbe-u95xTozOXW&size=invisible&cb=xdejqs6942ba

Requested by

Host: www.gstatic.com
URL: https://www.gstatic.com/recaptcha/releases/vj7hFxe2iNgbe-u95xTozOXW/recaptcha__zh_cn.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

142.251.175.94 Farmingdale, United States, ASN15169 (GOOGLE, US),

Reverse DNS

sh-in-f94.1e100.net

Software

GSE /

Resource Hash

aca570b5a7ead29de87864a5a3459c3831cdbe1c36ac90024758e0cc58c43134

Security Headers

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

Request headers

Referer: https://www.duolingo.com/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
accept-language: zh-SG,zh;q=0.9

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
cache-control: no-cache, no-store, max-age=0, must-revalidate
content-encoding: gzip
content-security-policy: script-src 'report-sample' 'nonce-HrH9-BAP_prGRtz_LfC23g' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/recaptcha/1
content-type: text/html; charset=utf-8
cross-origin-embedder-policy: require-corp
cross-origin-resource-policy: cross-origin
date: Thu, 29 Feb 2024 12:33:14 GMT
expires: Mon, 01 Jan 1990 00:00:00 GMT
pragma: no-cache
report-to: {"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
server: GSE
x-content-type-options: nosniff
x-xss-protection: 1; mode=block

GET
H2 200 styles__ltr.css
www.gstatic.com/recaptcha/releases/vj7hFxe2iNgbe-u95xTozOXW/ Frame D9BB 55 KB
25 KB 777ms
52ms Stylesheet
text/css 74.125.200.94
GOOGLE

General

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Full URL

https://www.gstatic.com/recaptcha/releases/vj7hFxe2iNgbe-u95xTozOXW/styles__ltr.css

Requested by

Host: www.recaptcha.net
URL: https://www.recaptcha.net/recaptcha/enterprise/anchor?ar=1&k=6LcLOdsjAAAAAFfwGusLLnnn492SOGhsCh-uEAvI&co=aHR0cHM6Ly93d3cuZHVvbGluZ28uY29tOjQ0Mw..&hl=zh-CN&v=vj7hFxe2iNgbe-u95xTozOXW&size=invisible&cb=xdejqs6942ba

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.200.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sa-in-f94.1e100.net

Software

sffe /

Resource Hash

7859a62e04b0acb06516eb12454de6673883ecfaeaed6c254659bca7cd59c050

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.recaptcha.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Wed, 28 Feb 2024 07:01:37 GMT
content-encoding: gzip
x-content-type-options: nosniff
age: 106298
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/recaptcha
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 24606
x-xss-protection: 0
last-modified: Mon, 26 Feb 2024 03:01:13 GMT
server: sffe
cross-origin-opener-policy: same-origin-allow-popups; report-to="recaptcha"
vary: Accept-Encoding
report-to: {"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
content-type: text/css
cache-control: public, max-age=31536000
accept-ranges: bytes
expires: Thu, 27 Feb 2025 07:01:37 GMT

GET
H2 200 recaptcha__zh_cn.js Show response
www.gstatic.com/recaptcha/releases/vj7hFxe2iNgbe-u95xTozOXW/ Frame D9BB 499 KB
198 KB 778ms
53ms Script
text/javascript 74.125.200.94
GOOGLE

General

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Show headers Download Go to

Full URL

https://www.gstatic.com/recaptcha/releases/vj7hFxe2iNgbe-u95xTozOXW/recaptcha__zh_cn.js

Requested by

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.200.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sa-in-f94.1e100.net

Software

sffe /

Resource Hash

d91a519e6b7a22437317cc5c88597d4da75f97adc091e87b1515bab4576314c3

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.recaptcha.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Wed, 28 Feb 2024 06:53:20 GMT
content-encoding: gzip
x-content-type-options: nosniff
age: 106795
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/recaptcha
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 202205
x-xss-protection: 0
last-modified: Mon, 26 Feb 2024 03:01:13 GMT
server: sffe
cross-origin-opener-policy: same-origin-allow-popups; report-to="recaptcha"
vary: Accept-Encoding
report-to: {"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
content-type: text/javascript
access-control-allow-origin: *
cache-control: public, max-age=31536000
accept-ranges: bytes
expires: Thu, 27 Feb 2025 06:53:20 GMT

GET
H2 200 otBannerSdk.js Show response
cdn.cookielaw.org/scripttemplates/6.16.0/ 374 KB
83 KB 100ms
100ms Script
application/javascript 104.18.130.236
CLOUDFLARENET

General

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Full URL

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

TLS 1.3, , AES_128_GCM

Server

104.18.130.236 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

353bcd41d11cc5a2bcb6763c269e41ac785c06ace29ac10053bb7c0fa3bf1ecf

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

x-ms-blob-type: BlockBlob
date: Thu, 29 Feb 2024 12:33:15 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
content-md5: dGCXlveaBvO7BI0nfZKP+g==
age: 35917
strict-transport-security: max-age=31536000; includeSubDomains; preload
content-length: 85065
x-ms-lease-status: unlocked
last-modified: Thu, 06 May 2021 19:31:04 GMT
server: cloudflare
etag: 0x8D910C57D52F14C
vary: Accept-Encoding
content-type: application/javascript
access-control-allow-origin: *
x-ms-request-id: 710ae3a0-c01e-001f-75b5-0c8a87000000
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=86400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 85d0ef457e6e3fec-SIN

GET
H2 200 zh-cn.json Show response
cdn.cookielaw.org/consent/55a7f100-001e-4085-87ec-1a6d522f7d67/a714f50c-3dd8-46b5-8c3e-f33de492a413/ 80 KB
21 KB 102ms
102ms Fetch
application/x-javascript 104.18.130.236
CLOUDFLARENET

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Show headers Download Go to

Full URL

https://cdn.cookielaw.org/consent/55a7f100-001e-4085-87ec-1a6d522f7d67/a714f50c-3dd8-46b5-8c3e-f33de492a413/zh-cn.json

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

104.18.130.236 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

b9cb03271e32ad02f102777a06ccf9d8c319a64b4394bc6656a3dacc215abb63

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

x-ms-blob-type: BlockBlob
date: Thu, 29 Feb 2024 12:33:15 GMT
content-encoding: gzip
x-content-type-options: nosniff
cf-cache-status: HIT
strict-transport-security: max-age=31536000; includeSubDomains; preload
age: 85775
content-md5: TszepeeVq8Dhz/U+Ohc8Ew==
content-length: 20910
x-ms-lease-status: unlocked
last-modified: Fri, 19 Jan 2024 17:26:55 GMT
server: cloudflare
etag: 0x8DC1913D5521F84
vary: Accept-Encoding
content-type: application/x-javascript
access-control-allow-origin: *
x-ms-request-id: d1ca4c68-601e-0039-41fc-4ac29f000000
access-control-expose-headers: x-ms-request-id,Server,x-ms-version,Content-Type,Content-Encoding,Cache-Control,Last-Modified,ETag,Content-MD5,x-ms-lease-status,x-ms-blob-type,Content-Length,Date,Transfer-Encoding
cache-control: public, max-age=86400
x-ms-version: 2009-09-19
accept-ranges: bytes
cf-ray: 85d0ef463d164c8f-SIN
expires: Fri, 01 Mar 2024 12:33:15 GMT

OPTIONS
H2 200 batch
excess.duolingo.com/ Frame 0
0 439ms
438ms Preflight 54.196.31.19
AMAZON-AES

General

Check archive.org

Show headers Download Go to

Full URL: https://excess.duolingo.com/batch
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-196-31-19.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type
Access-Control-Request-Method: POST
Origin: https://www.duolingo.com
Sec-Fetch-Mode: cors
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

accept-encoding: gzip, identity
access-control-allow-headers: Content-Type, Access-Control-Allow-Headers, Authorization
access-control-allow-methods: POST, GET, OPTIONS
access-control-allow-origin: *
access-control-max-age: 3600
allow: GET, HEAD, POST, TRACE, OPTIONS
content-length: 0
date: Thu, 29 Feb 2024 12:33:15 GMT
server: Jetty(9.4.53.v20231009)

POST
H2 200 batch Show response
excess.duolingo.com/ 34 B
311 B 475ms
475ms XHR
text/plain 54.196.31.19
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/6039-c20444f4.js
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_128_GCM
Server: 54.196.31.19 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS: ec2-54-196-31-19.compute-1.amazonaws.com
Software: Jetty(9.4.53.v20231009) /
Resource Hash: 26503ab2f8fd7184b8f272f63557e8d0b61c9d3cb6ee042e37a4e541dc2eb615

Request headers

Referer: https://www.duolingo.com/
accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-type: application/json

Response headers

date: Thu, 29 Feb 2024 12:33:16 GMT
accept-encoding: gzip, identity
server: Jetty(9.4.53.v20231009)
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 js Show response
www.googletagmanager.com/gtag/ 298 KB
97 KB 50ms
49ms Script
application/javascript 74.125.200.97
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.googletagmanager.com/gtag/js?id=G-CSFDVCPQ4F&l=dataLayer&cx=c

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

74.125.200.97 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sa-in-f97.1e100.net

Software

Google Tag Manager /

Resource Hash

c271648f2dc40c01d9a2844e5f75572f287a16b59afee239731fab455bffe547

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
content-encoding: br
strict-transport-security: max-age=31536000; includeSubDomains
server: Google Tag Manager
vary: Accept-Encoding
content-type: application/javascript; charset=UTF-8
access-control-allow-origin: *
cache-control: private, max-age=900
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
access-control-allow-headers: Cache-Control
content-length: 99606
x-xss-protection: 0
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires: Thu, 29 Feb 2024 12:33:15 GMT

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 52 KB
21 KB 490ms
63ms Script
text/javascript 74.125.24.100
GOOGLE

General

Check archive.org

Show headers Download Go to

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

74.125.24.100 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sf-in-f100.1e100.net

Software

Golfe2 /

Resource Hash

de36e50194320a7d3ef1ace9bd34a875a8bd458b253c061979dd628e9bf49afd

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

strict-transport-security: max-age=10886400; includeSubDomains; preload
content-encoding: gzip
x-content-type-options: nosniff
date: Thu, 29 Feb 2024 11:08:40 GMT
last-modified: Tue, 12 Dec 2023 18:09:08 GMT
server: Golfe2
age: 5075
vary: Accept-Encoding
content-type: text/javascript
cache-control: public, max-age=7200
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 20994
expires: Thu, 29 Feb 2024 13:08:40 GMT

GET
H2 200 destination Show response
www.googletagmanager.com/gtag/ 215 KB
77 KB 367ms
365ms Script
application/javascript 74.125.200.97
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.googletagmanager.com/gtag/destination?id=AW-397119219&l=dataLayer&cx=c

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

74.125.200.97 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sa-in-f97.1e100.net

Software

Google Tag Manager /

Resource Hash

fd6cb7e8508b7073c0de394bbb96e4096405794cf01b06a8ab3855ef433ab001

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
content-encoding: br
strict-transport-security: max-age=31536000; includeSubDomains
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 78899
x-xss-protection: 0
last-modified: Thu, 29 Feb 2024 12:00:00 GMT
server: Google Tag Manager
vary: Accept-Encoding
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: Thu, 29 Feb 2024 12:33:15 GMT

GET
H2 200 fbevents.js Show response
connect.facebook.net/en_US/ 214 KB
58 KB 473ms
53ms Script
application/x-javascript 157.240.235.1
FACEBOOK

General

Check archive.org

Show headers Download Go to

Full URL

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

Requested by

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

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

157.240.235.1 Singapore, Singapore, ASN32934 (FACEBOOK, US),

Reverse DNS

xx-fbcdn-shv-04-sin6.fbcdn.net

Software

Resource Hash

0e04153b5f73bfa7866948f2a9870593d69bfde14e77a1a06af5f567096e5a09

Security Headers

Name	Value
Content-Security-Policy	default-src 'self' data: blob: ;script-src .facebook.com .fbcdn.net .facebook.net .google-analytics.com .google.com 127.0.0.1:* 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' ;connect-src .facebook.com facebook.com .fbcdn.net .facebook.net wss://.facebook.com: wss://.whatsapp.com: wss://.fbcdn.net attachment.fbsbx.com ws://localhost: blob: *.cdninstagram.com 'self';block-all-mixed-content;upgrade-insecure-requests;require-trusted-types-for 'script';
Strict-Transport-Security	max-age=31536000; preload; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	DENY
X-Xss-Protection	0

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

permissions-policy-report-only: clipboard-read=(), clipboard-write=(), picture-in-picture=();report-to="permissions_policy"
content-security-policy: default-src 'self' data: blob: *;script-src *.facebook.com *.fbcdn.net *.facebook.net *.google-analytics.com *.google.com 127.0.0.1:* 'unsafe-inline' 'unsafe-eval' blob: data: 'self';style-src data: blob: 'unsafe-inline' *;connect-src *.facebook.com facebook.com *.fbcdn.net *.facebook.net wss://*.facebook.com:* wss://*.whatsapp.com:* wss://*.fbcdn.net attachment.fbsbx.com ws://localhost:* blob: *.cdninstagram.com 'self';block-all-mixed-content;upgrade-insecure-requests;require-trusted-types-for 'script';
content-encoding: gzip
x-content-type-options: nosniff
strict-transport-security: max-age=31536000; preload; includeSubDomains
date: Thu, 29 Feb 2024 12:33:15 GMT
document-policy: force-load-at-top
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 57257
x-xss-protection: 0
reporting-endpoints: coop_report="https://www.facebook.com/browser_reporting/coop/?minimize=0", coep_report="https://www.facebook.com/browser_reporting/coep/?minimize=0", permissions_policy="https://www.facebook.com/ajax/browser_error_reports/"
pragma: public
x-fb-debug: oktWw5Kj9SQaIXTNP6uhCWj6Prp+hHjNswvuSL5FrJ6J8ADG1hdshfeBkfWZaQRF1lc5O4gEC2G3vPmjqITY2A==
cross-origin-embedder-policy-report-only: require-corp;report-to="coep_report"
cross-origin-opener-policy: same-origin-allow-popups;report-to="coop_report"
vary: Accept-Encoding
report-to: {"max_age":2592000,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coop\/?minimize=0"}],"group":"coop_report","include_subdomains":true}, {"max_age":86400,"endpoints":[{"url":"https:\/\/www.facebook.com\/browser_reporting\/coep\/?minimize=0"}],"group":"coep_report"}, {"max_age":21600,"endpoints":[{"url":"https:\/\/www.facebook.com\/ajax\/browser_error_reports\/"}],"group":"permissions_policy"}
content-type: application/x-javascript; charset=utf-8
x-frame-options: DENY
origin-agent-cluster: ?0
cache-control: public, max-age=1200
permissions-policy: accelerometer=(), ambient-light-sensor=(), autoplay=(), bluetooth=(), camera=(), display-capture=(), encrypted-media=(), fullscreen=(self), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), midi=(), otp-credentials=(), payment=(), publickey-credentials-get=(), screen-wake-lock=(), serial=(), usb=(), window-management=(), xr-spatial-tracking=();report-to="permissions_policy"
timing-allow-origin: *
expires: Sat, 01 Jan 2000 00:00:00 GMT

POST
H2 204 collect
analytics.google.com/g/ 0
255 B 477ms
54ms Ping
text/plain 216.239.32.181
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL: https://analytics.google.com/g/collect?v=2&tid=G-CSFDVCPQ4F&_ono=1&gtm=45je42q1v899653930z8811879556za220&_p=1709209993572&_gaz=1&gcd=13l3l3l3l1&npa=0&dma=0&cid=662744294.1709209996&ul=en-us&sr=1600x1200&uaa=&uab=&uafvl=&uamb=0&uam=&uap=&uapv=&uaw=0&pscdl=noapi&_s=1&sid=1709209995&sct=1&seg=0&dl=https%3A%2F%2Fwww.duolingo.com%2F&dt=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&en=page_view&_fv=1&_nsi=1&_ss=1&tfd=4897
Requested by: Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-CSFDVCPQ4F&l=dataLayer&cx=c
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 216.239.32.181 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software: Golfe2 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:16 GMT
server: Golfe2
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
content-length: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

POST
H2 204 collect
stats.g.doubleclick.net/g/ 0
47 B 475ms
53ms Ping
text/plain 172.217.194.154
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL: https://stats.g.doubleclick.net/g/collect?v=2&_ono=1&tid=G-CSFDVCPQ4F&cid=662744294.1709209996&gtm=45je42q1v899653930z8811879556za220&aip=1&dma=0&gcd=13l3l3l3l1&npa=0
Requested by: Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-CSFDVCPQ4F&l=dataLayer&cx=c
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 172.217.194.154 , United States, ASN15169 (GOOGLE, US),
Reverse DNS: si-in-f154.1e100.net
Software: Golfe2 /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:16 GMT
server: Golfe2
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
content-length: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 ga-audiences
www.google.com.sg/ads/ 42 B
408 B 476ms
55ms Image
image/gif 74.125.24.94
GOOGLE

General

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Show headers Download Go to Show image

Full URL

https://www.google.com.sg/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&_ono=1&tid=G-CSFDVCPQ4F&cid=662744294.1709209996&gtm=45je42q1v899653930z8811879556za220&aip=1&dma=0&gcd=13l3l3l3l1&npa=0&z=1280266055

Requested by

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

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.24.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sf-in-f94.1e100.net

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:16 GMT
x-content-type-options: nosniff
server: cafe
content-type: image/gif
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
timing-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 / Show response
www.googleadservices.com/pagead/conversion/397119219/ 3 KB
2 KB 179ms
61ms Script
text/javascript 74.125.200.154
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.googleadservices.com/pagead/conversion/397119219/?random=1709209995790&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&bttype=purchase&npa=0&pscdl=noapi&auid=27194993.1709209996&uamb=0&uaw=0&rfmt=3&fmt=4

Requested by

Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/destination?id=AW-397119219&l=dataLayer&cx=c

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.200.154 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sa-in-f154.1e100.net

Software

cafe /

Resource Hash

28cfffa0619835cc7d25681528e0cddec2f5b3f11e63db924f5af0651da8fa02

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:15 GMT
content-encoding: br
x-content-type-options: nosniff
server: cafe
content-type: text/javascript; charset=UTF-8
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, must-revalidate
cross-origin-resource-policy: cross-origin
content-disposition: attachment; filename="f.txt"
timing-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 1736
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

POST
H2 200 collect Show response
www.google-analytics.com/j/ 4 B
210 B 53ms
52ms XHR
text/plain 74.125.24.100
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google-analytics.com/j/collect?v=1&_v=j101&a=214975537&t=pageview&_s=1&dl=https%3A%2F%2Fwww.duolingo.com%2F&ul=en-us&de=UTF-8&dt=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YADAAEABAAAAACgAI~&jid=673934434&gjid=919904804&cid=662744294.1709209996&tid=UA-21595814-1&_gid=469242773.1709209996&_r=1&_slc=1&gtm=45He42q1n81TX6Z97Cv811879556za200&gcd=13l3l3l3l1&dma=0&did=i5iSjo&z=2131167715

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.24.100 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sf-in-f100.1e100.net

Software

Golfe2 /

Resource Hash

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Security Headers

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Request headers

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accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-Type: text/plain

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:15 GMT
x-content-type-options: nosniff
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server: Golfe2
content-type: text/plain
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H2 200 1735692093320310 Show response
connect.facebook.net/signals/config/ 53 KB
11 KB 50ms
49ms Script
application/x-javascript 157.240.235.1
FACEBOOK

General

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Full URL

https://connect.facebook.net/signals/config/1735692093320310?v=2.9.147&r=stable&domain=www.duolingo.com&hme=20c913bdcd4be51a752120153aa5caaecb3ee86c7f26cf737846e40b202aba68&ex_m=62%2C106%2C94%2C98%2C53%2C3%2C88%2C61%2C14%2C86%2C79%2C44%2C46%2C150%2C153%2C164%2C160%2C161%2C163%2C25%2C89%2C45%2C68%2C162%2C145%2C148%2C157%2C158%2C165%2C115%2C13%2C43%2C169%2C168%2C117%2C16%2C29%2C32%2C1%2C36%2C57%2C58%2C59%2C63%2C83%2C15%2C12%2C85%2C82%2C81%2C95%2C97%2C31%2C96%2C26%2C22%2C146%2C149%2C124%2C24%2C9%2C10%2C11%2C5%2C6%2C21%2C19%2C20%2C49%2C54%2C56%2C66%2C90%2C23%2C67%2C8%2C7%2C71%2C41%2C18%2C92%2C91%2C17%2C4%2C73%2C80%2C72%2C78%2C40%2C39%2C77%2C33%2C35%2C76%2C48%2C74%2C28%2C37%2C65%2C0%2C84%2C75%2C2%2C30%2C55%2C34%2C93%2C38%2C70%2C60%2C99%2C52%2C51%2C27%2C87%2C50%2C47%2C42%2C69%2C64%2C100

Requested by

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Protocol

Security

TLS 1.3, , 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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Response headers

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GET
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www.google.com/js/bg/ Frame D9BB 17 KB
7 KB 452ms
51ms Script
text/javascript 74.125.68.104
GOOGLE

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Full URL

https://www.google.com/js/bg/9WFGRKJPCYDnPNtkHsd9A4DmYMQ5DrBGEy3ZqrvSuE0.js

Requested by

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Protocol

Security

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Server

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Software

sffe /

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Security Headers

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Request headers

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Response headers

date: Thu, 29 Feb 2024 02:56:57 GMT
content-encoding: br
x-content-type-options: nosniff
age: 34579
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content-type: text/javascript
cache-control: public, max-age=31536000
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GET
H2 200 logo_48.png
www.gstatic.com/recaptcha/api2/ Frame D9BB 2 KB
2 KB 46ms
46ms Image
image/png 74.125.200.94
GOOGLE

General

Check archive.org

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Full URL

https://www.gstatic.com/recaptcha/api2/logo_48.png

Requested by

Host: www.gstatic.com
URL: https://www.gstatic.com/recaptcha/releases/vj7hFxe2iNgbe-u95xTozOXW/styles__ltr.css

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.200.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

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Software

sffe /

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Security Headers

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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Wed, 28 Feb 2024 07:01:37 GMT
x-content-type-options: nosniff
age: 106298
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GET
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fonts.gstatic.com/s/roboto/v18/ Frame D9BB 15 KB
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49ms Font
font/woff2 74.125.200.94
GOOGLE

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Full URL

https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxK.woff2

Requested by

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.200.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

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Software

sffe /

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Response headers

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age: 105462
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access-control-allow-origin: *
cache-control: public, max-age=31536000
accept-ranges: bytes
timing-allow-origin: *
expires: Thu, 27 Feb 2025 07:15:33 GMT

GET
H2 200 KFOlCnqEu92Fr1MmEU9fBBc4.woff2
fonts.gstatic.com/s/roboto/v18/ Frame D9BB 15 KB
16 KB 46ms
46ms Font
font/woff2 74.125.200.94
GOOGLE

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Full URL

https://fonts.gstatic.com/s/roboto/v18/KFOlCnqEu92Fr1MmEU9fBBc4.woff2

Requested by

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.200.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sa-in-f94.1e100.net

Software

sffe /

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Security Headers

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Request headers

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accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Wed, 28 Feb 2024 06:47:58 GMT
x-content-type-options: nosniff
age: 107117
content-security-policy-report-only: require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
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content-length: 15552
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last-modified: Mon, 16 Oct 2017 17:33:02 GMT
server: sffe
cross-origin-opener-policy: same-origin; report-to="apps-themes"
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content-type: font/woff2
access-control-allow-origin: *
cache-control: public, max-age=31536000
accept-ranges: bytes
timing-allow-origin: *
expires: Thu, 27 Feb 2025 06:47:58 GMT

POST
H2 200 collect Show response
stats.g.doubleclick.net/j/ 8 B
354 B 306ms
52ms XHR
text/plain 172.217.194.154
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=j101&tid=UA-21595814-1&cid=662744294.1709209996&jid=673934434&gjid=919904804&_gid=469242773.1709209996&_u=YADAAEAAAAAAACgAI~&z=1361594271

Requested by

Host: d35aaqx5ub95lt.cloudfront.net
URL: https://d35aaqx5ub95lt.cloudfront.net/js/6039-c20444f4.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

172.217.194.154 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

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Software

Golfe2 /

Resource Hash

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Security Headers

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X-Content-Type-Options	nosniff

Request headers

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accept-language: zh-SG,zh;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36
Content-Type: text/plain

Response headers

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strict-transport-security: max-age=10886400; includeSubDomains; preload
date: Thu, 29 Feb 2024 12:33:16 GMT
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
content-type: text/plain
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alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 8
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 webworker.js
www.recaptcha.net/recaptcha/enterprise/ Frame D9BB 105 B
212 B 51ms
50ms Other
text/javascript 142.251.175.94
GOOGLE

General

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Full URL

https://www.recaptcha.net/recaptcha/enterprise/webworker.js?hl=zh-CN&v=vj7hFxe2iNgbe-u95xTozOXW

Requested by

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

142.251.175.94 Farmingdale, United States, ASN15169 (GOOGLE, US),

Reverse DNS

sh-in-f94.1e100.net

Software

GSE /

Resource Hash

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Security Headers

Name	Value
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Request headers

accept-language: zh-SG,zh;q=0.9
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Thu, 29 Feb 2024 12:33:15 GMT
content-encoding: gzip
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self'
server: GSE
cross-origin-embedder-policy: require-corp
x-frame-options: SAMEORIGIN
report-to: {"group":"recaptcha","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/recaptcha"}]}
content-type: text/javascript; charset=utf-8
cache-control: private, max-age=300
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection: 1; mode=block
expires: Thu, 29 Feb 2024 12:33:15 GMT

GET
H2 200 /
www.facebook.com/tr/ 0
185 B 455ms
45ms Image
text/plain 157.240.235.35
FACEBOOK

General

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Full URL

https://www.facebook.com/tr/?id=1735692093320310&ev=PageView&dl=https%3A%2F%2Fwww.duolingo.com%2F&rl=&if=false&ts=1709209995993&sw=1600&sh=1200&v=2.9.147&r=stable&ec=0&o=4125&fbp=fb.1.1709209995991.1741494072&ler=empty&cdl=API_unavailable&it=1709209995888&coo=false&exp=e1&rqm=GET

Requested by

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

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

157.240.235.35 Singapore, Singapore, ASN32934 (FACEBOOK, US),

Reverse DNS

edge-star-mini-shv-04-sin6.facebook.com

Software

proxygen-bolt /

Resource Hash

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Security Headers

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Request headers

accept-language: zh-SG,zh;q=0.9
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

strict-transport-security: max-age=31536000; includeSubDomains
date: Thu, 29 Feb 2024 12:33:16 GMT
server: proxygen-bolt
content-type: text/plain
access-control-allow-origin
access-control-allow-credentials: true
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 0

GET
H2

200

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

https://googleads.g.doubleclick.net/pagead/viewthroughconversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w...
https://www.google.com/pagead/1p-conversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url=ht...
https://www.google.com.sg/pagead/1p-conversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url...

42 B
154 B

55ms
54ms

Image
image/gif

74.125.24.94
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.com.sg/pagead/1p-conversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&npa=0&pscdl=noapi&auid=27194993.1709209996&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=COy7sQII4b2xAg&pscrd=EkxDaEVJZ1BPQXJ3WVFvZGVZblpIV3BZZTBBUklrQUVtdEhCcDM5S1QzWXlXOEVsU0czbGhBNWwxU1hyOFNfUDZrNTl1NG9YQjZ5RjFNGldDaEVJZ1BPQXJ3WVF4Tl9EMTlxanFidTFBUklzQUlTRGlkY2xtb2FWSzdWZ1Rud0NzQlNFWXNuRzJXWm55enhuTFV4czNtNlVFVkpRdGZWd0ZyS01EaU0iEwjM05-1x9CEAxViAYMDHew5CBEyAggDMgIIBDICCAcyAggIMgIICTICCAoyAggC&is_vtc=1&cid=CAQSGwB7FLtqRmdcUvbvuphRz6BLFageUlVG9N1mXA&eitems=ChAIgPOArwYQlM2O1ZON4NoQEh0A67BuL1dkGRgDJQUqQmvE8_i22pcx5nIsKq2oHg&random=1689626668&ipr=y

Requested by

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

Protocol

Server

74.125.24.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sf-in-f94.1e100.net

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

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:16 GMT
content-security-policy: script-src 'none'; object-src 'none'
x-content-type-options: nosniff
server: cafe
content-type: image/gif
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
timing-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

Redirect headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:16 GMT
content-security-policy: script-src 'none'; object-src 'none'
x-content-type-options: nosniff
server: cafe
p3p: policyref="https://www.googleadservices.com/pagead/p3p.xml", CP="NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC"
location: https://www.google.com.sg/pagead/1p-conversion/397119219/?random=1852972487&cv=11&fst=1709209995790&bg=ffffff&guid=ON&async=1&gtm=45be42q1z8811879556za201&gcd=13l3l3l3l1&dma=0&u_w=1600&u_h=1200&url=https%3A%2F%2Fwww.duolingo.com%2F&label=k0ETCJGBvf0BEPOdrr0B&hn=www.googleadservices.com&frm=0&tiba=%E5%A4%9A%E9%82%BB%E5%9B%BD%20-%20%E5%85%A8%E7%90%83%E6%95%B0%E4%BA%BF%E8%AF%AD%E8%A8%80%E5%AD%A6%E4%B9%A0%E8%80%85%E7%9A%84%E5%8F%A3%E7%A2%91%E9%80%89%E6%8B%A9&value=1&npa=0&pscdl=noapi&auid=27194993.1709209996&uamb=0&uaw=0&fmt=3&ct_cookie_present=false&sscte=1&crd=COy7sQII4b2xAg&pscrd=EkxDaEVJZ1BPQXJ3WVFvZGVZblpIV3BZZTBBUklrQUVtdEhCcDM5S1QzWXlXOEVsU0czbGhBNWwxU1hyOFNfUDZrNTl1NG9YQjZ5RjFNGldDaEVJZ1BPQXJ3WVF4Tl9EMTlxanFidTFBUklzQUlTRGlkY2xtb2FWSzdWZ1Rud0NzQlNFWXNuRzJXWm55enhuTFV4czNtNlVFVkpRdGZWd0ZyS01EaU0iEwjM05-1x9CEAxViAYMDHew5CBEyAggDMgIIBDICCAcyAggIMgIICTICCAoyAggC&is_vtc=1&cid=CAQSGwB7FLtqRmdcUvbvuphRz6BLFageUlVG9N1mXA&eitems=ChAIgPOArwYQlM2O1ZON4NoQEh0A67BuL1dkGRgDJQUqQmvE8_i22pcx5nIsKq2oHg&random=1689626668&ipr=y
content-type: image/gif
cache-control: no-cache, no-store, must-revalidate
cross-origin-resource-policy: cross-origin
timing-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 ga-audiences
www.google.com/ads/ 42 B
293 B 120ms
56ms Image
image/gif 74.125.68.104
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=j101&tid=UA-21595814-1&cid=662744294.1709209996&jid=673934434&_u=YADAAEAAAAAAACgAI~&z=1500648572

Requested by

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

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.68.104 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sc-in-f104.1e100.net

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:16 GMT
x-content-type-options: nosniff
server: cafe
content-type: image/gif
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
timing-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 ga-audiences
www.google.com.sg/ads/ 42 B
107 B 50ms
50ms Image
image/gif 74.125.24.94
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.com.sg/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j101&tid=UA-21595814-1&cid=662744294.1709209996&jid=673934434&_u=YADAAEAAAAAAACgAI~&z=1500648572

Requested by

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

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.24.94 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sf-in-f94.1e100.net

Software

cafe /

Resource Hash

ef1955ae757c8b966c83248350331bd3a30f658ced11f387f8ebf05ab3368629

Security Headers

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

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

pragma: no-cache
date: Thu, 29 Feb 2024 12:33:16 GMT
x-content-type-options: nosniff
server: cafe
content-type: image/gif
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
timing-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 42
x-xss-protection: 0
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H2 200 style
accounts.google.com/gsi/ 533 B
608 B 141ms
140ms Stylesheet
text/css 74.125.130.84
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://accounts.google.com/gsi/style

Requested by

Host: accounts.google.com
URL: https://accounts.google.com/gsi/client

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

74.125.130.84 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

sb-in-f84.1e100.net

Software

ESF /

Resource Hash

1c4e7e389d73c6acf7f19cc812514e71230740791fde8a018c1d7edccf1590ae

Security Headers

Name	Value
Content-Security-Policy	require-trusted-types-for 'script';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http, script-src 'report-sample' 'nonce-SeEy60EaM8q85nVFavZWkg' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN
X-Xss-Protection	0

Request headers

accept-language: zh-SG,zh;q=0.9
Referer: https://www.duolingo.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.94 Safari/537.36

Response headers

date: Thu, 29 Feb 2024 12:33:16 GMT
content-security-policy: require-trusted-types-for 'script';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http, script-src 'report-sample' 'nonce-SeEy60EaM8q85nVFavZWkg' 'unsafe-inline' 'strict-dynamic' https: http: 'unsafe-eval';object-src 'none';base-uri 'self';report-uri https://csp.withgoogle.com/csp/identity-sign-in-google-http
content-encoding: gzip
x-content-type-options: nosniff
server: ESF
x-frame-options: SAMEORIGIN
report-to: {"group":"coop_dd7de8473bddc59c6b748810a67a39b1","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/dd7de8473bddc59c6b748810a67a39b1"}]}
content-type: text/css; charset=utf-8
cache-control: private, max-age=86400
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection: 0
cross-origin-opener-policy-report-only: same-origin; report-to="coop_dd7de8473bddc59c6b748810a67a39b1"
expires: Thu, 29 Feb 2024 12:33:16 GMT

Verdicts & Comments Add Verdict or Comment

57 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.

19 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/	1970-01-21 03:32:25	Name: logged_out_uuid Value: e5e0fcc8-dbfe-48de-87b9-8747dae710e6
.duolingo.com/	1970-01-21 03:32:25	Name: lang Value: zs
.duolingo.com/	1970-01-20 20:56:25	Name: duocsexp2 Value: designsys_web_use_din_for_duolingo~control~
www.duolingo.com/	1969-12-31 23:59:59	Name: wuuid Value: 482f4329-685c-4b66-934f-37c2a439603d
.duolingo.com/	1970-01-21 03:32:25	Name: tsl Value: 1709209993673
.duolingo.com/	1970-01-21 03:32:25	Name: lu Value: https://www.duolingo.com/
.duolingo.com/	1970-01-21 03:32:25	Name: initial_referrer Value: $direct
.duolingo.com/	1970-01-21 03:32:25	Name: lr Value:
.duolingo.com/	1970-01-21 03:32:25	Name: lp Value: splash
.duolingo.com/	1970-01-20 23:06:01	Name: OptanonConsent Value: isGpcEnabled=0&datestamp=Thu+Feb+29+2024+20%3A33%3A15+GMT%2B0800+(Singapore+Standard+Time)&version=6.16.0&isIABGlobal=false&consentId=4847ba0c-9ac1-49e3-b3af-8e2c21822b00&interactionCount=0&landingPath=https%3A%2F%2Fwww.duolingo.com%2F&groups=C0001%3A1%2CC0002%3A1%2CC0003%3A1%2CC0004%3A1&hosts=H3%3A1%2CH14%3A1%2CH11%3A1%2CH1%3A1%2CH15%3A1%2CH6%3A1%2CH22%3A1%2CH2%3A1%2CH26%3A1%2CH7%3A1%2CH16%3A1%2CH9%3A1%2CH28%3A1%2CH18%3A1%2CH10%3A1%2CH12%3A1%2CH13%3A1
www.duolingo.com/	1970-01-20 18:56:54	Name: AWSALB Value: g/eZU3wZqzzKOmQVE/lrowwYCNH4xw7DGB8IiVEgxTRoBt7SWBu1qLGVSeu0JMkozG2++DSsev7kBJczswO2OMAX4Ewb6REwccd4fl+tayeNcssGOnOq+nAAlRPK
www.duolingo.com/	1970-01-20 18:56:54	Name: AWSALBCORS Value: g/eZU3wZqzzKOmQVE/lrowwYCNH4xw7DGB8IiVEgxTRoBt7SWBu1qLGVSeu0JMkozG2++DSsev7kBJczswO2OMAX4Ewb6REwccd4fl+tayeNcssGOnOq+nAAlRPK
.duolingo.com/	1970-01-21 04:22:49	Name: _ga_CSFDVCPQ4F Value: GS1.1.1709209995.1.0.1709209995.60.0.0
.duolingo.com/	1970-01-20 20:56:25	Name: _gcl_au Value: 1.1.27194993.1709209996
.duolingo.com/	1970-01-21 04:22:49	Name: _ga Value: GA1.2.662744294.1709209996
.duolingo.com/	1970-01-20 18:48:16	Name: _gid Value: GA1.2.469242773.1709209996
.duolingo.com/	1970-01-20 18:46:50	Name: _gat_UA-21595814-1 Value: 1
.duolingo.com/	1970-01-20 20:56:25	Name: _fbp Value: fb.1.1709209995991.1741494072
.doubleclick.net/	1970-01-20 18:46:50	Name: test_cookie Value: CheckForPermission

4 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source	Level	URL Text
network	error	URL: https://brb.duolingo.com/0/web.json?user=0&ts=1709209993&tzoffset=8 Message: Failed to load resource: the server responded with a status of 404 ()
network	error	URL: https://zombie.duolingo.com/0/web.json?user=0&ts=1709209993&tzoffset=8 Message: Failed to load resource: the server responded with a status of 404 ()
other	warning	URL: https://connect.facebook.net/signals/config/1735692093320310?v=2.9.147&r=stable&domain=www.duolingo.com&hme=20c913bdcd4be51a752120153aa5caaecb3ee86c7f26cf737846e40b202aba68&ex_m=62%2C106%2C94%2C98%2C53%2C3%2C88%2C61%2C14%2C86%2C79%2C44%2C46%2C150%2C153%2C164%2C160%2C161%2C163%2C25%2C89%2C45%2C68%2C162%2C145%2C148%2C157%2C158%2C165%2C115%2C13%2C43%2C169%2C168%2C117%2C16%2C29%2C32%2C1%2C36%2C57%2C58%2C59%2C63%2C83%2C15%2C12%2C85%2C82%2C81%2C95%2C97%2C31%2C96%2C26%2C22%2C146%2C149%2C124%2C24%2C9%2C10%2C11%2C5%2C6%2C21%2C19%2C20%2C49%2C54%2C56%2C66%2C90%2C23%2C67%2C8%2C7%2C71%2C41%2C18%2C92%2C91%2C17%2C4%2C73%2C80%2C72%2C78%2C40%2C39%2C77%2C33%2C35%2C76%2C48%2C74%2C28%2C37%2C65%2C0%2C84%2C75%2C2%2C30%2C55%2C34%2C93%2C38%2C70%2C60%2C99%2C52%2C51%2C27%2C87%2C50%2C47%2C42%2C69%2C64%2C100(Line 95) Message: Unrecognized feature: 'attribution-reporting'.
other	warning	URL: https://www.duolingo.com/ Message: Third-party cookie will be blocked. Learn more in the Issues tab.

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.

accounts.google.com
analytics.google.com
brb.duolingo.com
cdn.cookielaw.org
connect.facebook.net
d35aaqx5ub95lt.cloudfront.net
duolingo.com
excess.duolingo.com
fonts.gstatic.com
geolocation.onetrust.com
googleads.g.doubleclick.net
stats.g.doubleclick.net
www.duolingo.com
www.facebook.com
www.google-analytics.com
www.google.com
www.google.com.sg
www.googleadservices.com
www.googletagmanager.com
www.gstatic.com
www.recaptcha.net
zombie.duolingo.com
104.18.130.236
13.227.254.53
13.227.254.74
142.251.10.156
142.251.175.94
157.240.235.1
157.240.235.35
172.217.194.154
172.64.155.119
18.155.70.148
18.205.241.212
184.72.124.184
216.239.32.181
54.196.31.19
74.125.130.84
74.125.200.154
74.125.200.94
74.125.200.97
74.125.24.100
74.125.24.94
74.125.68.104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www.duolingo.com Open in urlscan Pro 18.205.241.212 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

119 Requests

99 %HTTPS

0 %IPv6

14 Domains

22 Subdomains

20 IPs

3 Countries

3129 kBTransfer

13412 kBSize

19 Cookies

49 Outgoing links

Page URL History

Redirected requests

119 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 1 data transactions

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

Screenshot
Live screenshot

Full Image

119
Requests

99 %
HTTPS

0 %
IPv6

14
Domains

22
Subdomains

20
IPs

3
Countries

3129 kB
Transfer

13412 kB
Size

19
Cookies

119 HTTP transactions
1 data transactions