reactjs.org Open in urlscan Pro
2a03:b0c0:3:d0::d23:d001 Public Scan

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Submitted URL:
https://fb.me/react-polyfills
Effective URL:
https://reactjs.org/docs/javascript-environment-requirements.html
Submission: On April 13 via manual (April 13th 2021, 11:22:10 pm UTC) from US

Summary HTTP 53 Redirects Links 18 Behaviour Indicators

Summary

This website contacted 4 IPs in 2 countries across 4 domains to perform 53 HTTP transactions. The main IP is 2a03:b0c0:3:d0::d23:d001, located in Frankfurt am Main, Germany and belongs to DIGITALOCEAN-ASN, US. The main domain is reactjs.org.
TLS certificate: Issued by R3 on March 24th 2021. Valid for: 3 months.

This is the only time reactjs.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
1 1	2a03:2880:f11... 2a03:2880:f11c:8183:face:b00c:0:25de	32934 (FACEBOOK) (FACEBOOK)
50	2a03:b0c0:3:d... 2a03:b0c0:3:d0::d23:d001	14061 (DIGITALOC...) (DIGITALOCEAN-ASN)
1	2606:4700::68... 2606:4700::6810:7aaf	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2a00:1450:400... 2a00:1450:4001:82b::200e	15169 (GOOGLE) (GOOGLE)
53	4

1 2a03:2880:f11c:8183:face:b00c:0:25de (United States) 1 redirects

ASN32934 (FACEBOOK, US)

fb.me	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

50 2a03:b0c0:3:d0::d23:d001 (Frankfurt am Main, Germany)

ASN14061 (DIGITALOCEAN-ASN, US)

reactjs.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700::6810:7aaf (United States)

ASN13335 (CLOUDFLARENET, US)

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

2 2a00:1450:4001:82b::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

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

	Apex Domain Subdomains	Transfer
50	reactjs.org reactjs.org	379 KB
2	google-analytics.com www.google-analytics.com	20 KB
1	unpkg.com unpkg.com	34 KB
1	fb.me 1 redirects fb.me	991 B
53	4

	Domain	Requested by
50	reactjs.org	reactjs.org
2	www.google-analytics.com	reactjs.org www.google-analytics.com
1	unpkg.com	reactjs.org
1	fb.me	1 redirects
53	4

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

Domain
www.surveymonkey.co.uk
github.com
developer.mozilla.org
www.npmjs.com
stackoverflow.com
discord.gg
dev.to
www.facebook.com
twitter.com
reactnative.dev
opensource.facebook.com

Subject Issuer	Validity	Valid
en.reactjs.org R3	`2021-03-24` - `2021-06-22`	3 months	crt.sh
sni.cloudflaressl.com Cloudflare Inc ECC CA-3	`2020-08-02` - `2021-08-02`	a year	crt.sh
*.google-analytics.com GTS CA 1O1	`2021-03-23` - `2021-06-15`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://reactjs.org/docs/javascript-environment-requirements.html
Frame ID: 8446A52F05C6A67913CC976AF90EB34F
Requests: 55 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page URL History Show full URLs

https://fb.me/react-polyfills HTTP 301
https://reactjs.org/docs/javascript-environment-requirements.html Page URL

Detected technologies

Netlify (Web Servers) Expand

Overall confidence: 100%
Detected patterns

headers server /^Netlify/i

Page Statistics

53
Requests

100 %
HTTPS

100 %
IPv6

4
Domains

4
Subdomains

4
IPs

2
Countries

433 kB
Transfer

1280 kB
Size

2
Cookies

18 Outgoing links

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

URL: https://www.surveymonkey.co.uk/r/673TZ7T

Search URL Search Domain Scan URL

URL: https://github.com/facebook/react/
Title: GitHub

Search URL Search Domain Scan URL

URL: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
Title: Map

Search URL Search Domain Scan URL

URL: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set
Title: Set

Search URL Search Domain Scan URL

URL: https://github.com/zloirock/core-js
Title: core-js

Search URL Search Domain Scan URL

URL: https://www.npmjs.com/package/raf
Title: raf

Search URL Search Domain Scan URL

URL: https://github.com/reactjs/reactjs.org/tree/master/content/docs/reference-javascript-environment-requirements.md
Title: Edit this page

Search URL Search Domain Scan URL

URL: https://github.com/facebook/react
Title: GitHub

Search URL Search Domain Scan URL

URL: https://stackoverflow.com/questions/tagged/reactjs
Title: Stack Overflow

Search URL Search Domain Scan URL

URL: https://discord.gg/reactiflux
Title: Reactiflux Chat

Search URL Search Domain Scan URL

URL: https://dev.to/t/react
Title: DEV Community

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: https://github.com/facebook/react/blob/master/CODE_OF_CONDUCT.md
Title: Code of Conduct

Search URL Search Domain Scan URL

URL: https://reactnative.dev/
Title: React Native

Search URL Search Domain Scan URL

URL: https://opensource.facebook.com/legal/privacy
Title: Privacy

Search URL Search Domain Scan URL

URL: https://opensource.facebook.com/legal/terms
Title: Terms

Search URL Search Domain Scan URL

URL: https://opensource.facebook.com/projects/

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.

https://fb.me/react-polyfills HTTP 301
https://reactjs.org/docs/javascript-environment-requirements.html Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

53 HTTP transactions
2 data transactions

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

GET
H2

200

Primary Request javascript-environment-requirements.html Show response
reactjs.org/docs/
Redirect Chain

https://fb.me/react-polyfills
https://reactjs.org/docs/javascript-environment-requirements.html

108 KB
24 KB

287ms
219ms

Document
text/html

2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/docs/javascript-environment-requirements.html

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

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Resource Hash

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Redirect headers

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GET
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reactjs.org/ 3 KB
2 KB 10ms
8ms Script
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

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Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

Netlify /

Resource Hash

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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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reactjs.org/ 118 B
255 B 11ms
9ms Script
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/styles-fb708593b484b04b1765.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

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Resource Hash

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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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reactjs.org/ 127 KB
40 KB 23ms
21ms Script
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/framework-ff9c508ebfda0f33cb0b.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

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Resource Hash

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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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47 KB 11ms
9ms Script
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

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Resource Hash

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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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13 KB 15ms
13ms Script
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/commons-ff1af8b35ccdc11f6b23.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

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Resource Hash

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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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8 KB 16ms
14ms Script
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

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Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

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Resource Hash

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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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reactjs.org/ 18 KB
6 KB 20ms
19ms Script
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

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Protocol

Security

TLS 1.3, , AES_256_GCM

Server

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Reverse DNS

Software

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Resource Hash

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Security Headers

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Request headers

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Response headers

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2 KB 14ms
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application/json 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/page-data/docs/react-dom-server.html/page-data.json

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

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

Response headers

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GET
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reactjs.org/ 0
4 KB 10ms
9ms Other
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/component---src-templates-docs-js-52cb57d0111f107a3116.js

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

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Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

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Netlify /

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

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reactjs.org/ 0
2 KB 11ms
8ms Other
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/component---src-pages-languages-js-2b3fbf93e188f8ea5e48.js

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

Netlify /

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Request headers

Referer: https://reactjs.org/docs/javascript-environment-requirements.html
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-nf-request-id: b20ade23-c20b-4bac-b47c-13e50e9b9d01-26555087
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GET
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reactjs.org/ 0
1 KB 7ms
6ms Other
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/component---src-pages-versions-js-29670ada5c88e7f2cb4e.js

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

Netlify /

Resource Hash

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Security Headers

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Request headers

Referer: https://reactjs.org/docs/javascript-environment-requirements.html
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

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GET
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reactjs.org/ 0
49 KB 7ms
7ms Other
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/component---src-pages-index-js-b9c392fa01f3d45f64e3.js

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

Netlify /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000
X-Content-Type-Options	nosniff
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Request headers

Referer: https://reactjs.org/docs/javascript-environment-requirements.html
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

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GET
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reactjs.org/ 0
4 KB 7ms
6ms Other
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/component---src-templates-community-js-958b9247f18d33990868.js

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

Netlify /

Resource Hash

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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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reactjs.org/ 0
4 KB 9ms
5ms Other
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/component---src-templates-docs-js-52cb57d0111f107a3116.js

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

Netlify /

Resource Hash

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Security Headers

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Request headers

Referer: https://reactjs.org/docs/javascript-environment-requirements.html
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-nf-request-id: b20ade23-c20b-4bac-b47c-13e50e9b9d01-26555101
date: Tue, 13 Apr 2021 20:14:54 GMT
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vary: Accept-Encoding
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GET
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reactjs.org/ 0
4 KB 7ms
6ms Other
application/javascript 2a03:b0c0:3:d0::d23:d001
DIGITALOCEAN-ASN

General

Check archive.org

Show headers Download Go to

Full URL

https://reactjs.org/component---src-templates-tutorial-js-32abea8a3482a7bf2244.js

Requested by

Host: reactjs.org
URL: https://reactjs.org/app-470a9d0129b0d7389e32.js

Protocol

Security

TLS 1.3, , AES_256_GCM

Server

2a03:b0c0:3:d0::d23:d001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),

Reverse DNS

Software

Netlify /

Resource Hash

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Security Headers

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Request headers

Referer: https://reactjs.org/docs/javascript-environment-requirements.html
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

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date: Tue, 13 Apr 2021 20:46:42 GMT
content-encoding: br
x-content-type-options: nosniff
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strict-transport-security: max-age=31536000
content-length: 3785
x-xss-protection: 1; mode=block
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x-frame-options: DENY
etag: "51e0d056109a3b8fdaf5fb75c24b5e15-ssl"
vary: Accept-Encoding
content-type: application/javascript
cache-control: public,max-age=31536000,immutable
accept-ranges: bytes

Verdicts & Comments Add Verdict or Comment

32 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.

2 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
			.reactjs.org/	1970-01-19 17:34:02	Name: _gid Value: GA1.2.799771752.1618356115
			.reactjs.org/	1970-01-20 11:03:48	Name: _ga Value: GA1.2.1303810344.1618356115

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
Strict-Transport-Security	max-age=31536000
X-Content-Type-Options	nosniff
X-Frame-Options	DENY
X-Xss-Protection	1; mode=block

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.

fb.me
reactjs.org
unpkg.com
www.google-analytics.com
2606:4700::6810:7aaf
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2a03:2880:f11c:8183:face:b00c:0:25de
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reactjs.org Open in urlscan Pro 2a03:b0c0:3:d0::d23:d001 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page URL History Show full URLs

Detected technologies

Page Statistics

53 Requests

100 %HTTPS

100 %IPv6

4 Domains

4 Subdomains

4 IPs

2 Countries

433 kBTransfer

1280 kBSize

2 Cookies

18 Outgoing links

Page URL History

Redirected requests

53 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 2 data transactions

Request headers

Response headers

Redirect headers

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reactjs.org Open in urlscan Pro
2a03:b0c0:3:d0::d23:d001 Public Scan

Screenshot
Live screenshot

Full Image

53
Requests

100 %
HTTPS

100 %
IPv6

4
Domains

4
Subdomains

4
IPs

2
Countries

433 kB
Transfer

1280 kB
Size

2
Cookies

53 HTTP transactions
2 data transactions