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react.dev Open in urlscan Pro
76.76.21.21  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://react.dev/learn/your-first-component
Effective URL: https://react.dev/learn/your-first-component
Submission: On August 27 via manual from PL — Scanned from PL
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 5 IPs in 3 countries across 5 domains to perform 60 HTTP transactions. The main IP is 76.76.21.21, located in Walnut, United States and belongs to AMAZON-02, US. The main domain is react.dev. The Cisco Umbrella rank of the primary domain is 207674.
TLS certificate: Issued by R3 on June 19th 2023. Valid for: 3 months.
This is the only time react.dev was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
49 76.76.21.21 16509 (AMAZON-02)
1 142.250.186.110 15169 (GOOGLE)
3 172.66.47.71 13335 (CLOUDFLAR...)
6 104.21.94.65 13335 (CLOUDFLAR...)
1 146.75.116.193 54113 (FASTLY)
60 5
49    76.76.21.21 (Walnut, United States)

ASN16509 (AMAZON-02, US)
react.dev
1    142.250.186.110 (United States)

ASN15169 (GOOGLE, US)
PTR: fra24s06-in-f14.1e100.net
www.google-analytics.com
3    172.66.47.71 (United States)

ASN13335 (CLOUDFLARENET, US)
1e4ad8f7.sandpack-bundler-4bw.pages.dev
6    104.21.94.65 (None, )

ASN13335 (CLOUDFLARENET, US)
sandpack-cdn-staging.blazingly.io
1    146.75.116.193 (Frankfurt am Main, Germany)

ASN54113 (FASTLY, US)
i.imgur.com
Apex Domain
Subdomains		 Transfer
49 react.dev
react.dev — Cisco Umbrella Rank: 207674
894 KB
6 blazingly.io
sandpack-cdn-staging.blazingly.io — Cisco Umbrella Rank: 367471
514 KB
3 pages.dev
1e4ad8f7.sandpack-bundler-4bw.pages.dev — Cisco Umbrella Rank: 349630
585 KB
1 imgur.com
i.imgur.com — Cisco Umbrella Rank: 7475
7 KB
1 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 37
342 B
60 5
Domain Requested by
49 react.dev react.dev
6 sandpack-cdn-staging.blazingly.io 1e4ad8f7.sandpack-bundler-4bw.pages.dev
3 1e4ad8f7.sandpack-bundler-4bw.pages.dev react.dev
1e4ad8f7.sandpack-bundler-4bw.pages.dev
1 i.imgur.com
1 www.google-analytics.com react.dev
60 5
Subject Issuer Validity Valid
react.dev
R3		 2023-06-19 -
2023-09-17		 3 months crt.sh
*.google-analytics.com
GTS CA 1C3		 2023-08-07 -
2023-10-30		 3 months crt.sh
sandpack-bundler-4bw.pages.dev
GTS CA 1P5		 2023-07-30 -
2023-10-28		 3 months crt.sh
blazingly.io
E1		 2023-07-12 -
2023-10-10		 3 months crt.sh
*.imgur.com
Sectigo RSA Domain Validation Secure Server CA		 2023-03-13 -
2024-03-12		 a year crt.sh

This page contains 2 frames:

Primary Page: https://react.dev/learn/your-first-component
Frame ID: 99569BC1AAA23D5F6029A21326CCE7BB
Requests: 50 HTTP requests in this frame

Frame: https://1e4ad8f7.sandpack-bundler-4bw.pages.dev/
Frame ID: 3B3E9C3F5337D5DC7F36ABA2F1C1F7E1
Requests: 10 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Your First Component – React

Page URL History Show full URLs

  1. http://react.dev/learn/your-first-component HTTP 307
    https://react.dev/learn/your-first-component Page URL

Page Statistics

60
Requests

100 %
HTTPS

0 %
IPv6

5
Domains

5
Subdomains

5
IPs

3
Countries

2000 kB
Transfer

7281 kB
Size

0
Cookies

Page URL History

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

  1. http://react.dev/learn/your-first-component HTTP 307
    https://react.dev/learn/your-first-component Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

60 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request your-first-component
react.dev/learn/
Redirect Chain
  • http://react.dev/learn/your-first-component
  • https://react.dev/learn/your-first-component
188 KB
35 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
50a379c67d06459c68697f58fe2326d79dc5469474fd062c39e4132896f68488
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36
accept-language
pl-PL,pl;q=0.9

Response headers

access-control-allow-origin
*
age
312833
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="your-first-component"
content-encoding
br
content-type
text/html; charset=utf-8
date
Sun, 27 Aug 2023 14:34:25 GMT
etag
W/"7e43c496b6cfb988100e5720db387d6f"
server
Vercel
strict-transport-security
max-age=63072000
x-matched-path
/learn/your-first-component
x-vercel-cache
HIT
x-vercel-id
arn1::2bvw8-1693146865457-391571b0e891

Redirect headers

Cross-Origin-Resource-Policy
Cross-Origin
Location
https://react.dev/learn/your-first-component
Non-Authoritative-Reason
HSTS
48d6c8a8ea66af2f.css
react.dev/_next/static/css/ 		106 KB
20 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/css/48d6c8a8ea66af2f.css
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
a9c1038673f09f4068a9b4513180ef0ee83b9ef720bc7ed8951b0ba36e955cbf
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::mvtsg-1693146865513-4c56e1dd1d38
age
281814
x-matched-path
/_next/static/css/48d6c8a8ea66af2f.css
etag
W/"ed2cab28652ace5fedb2968dfa004842"
x-vercel-cache
HIT
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="48d6c8a8ea66af2f.css"
webpack-242fb9adaa00c605.js
react.dev/_next/static/chunks/ 		4 KB
2 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/chunks/webpack-242fb9adaa00c605.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
7fb3bbdf2d2bdc9418ba5720d557fdee45b2a69678d3a462cb9b187b233cc5f8
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::t2vbq-1693146865514-0b93593fb6ab
age
297382
x-matched-path
/_next/static/chunks/webpack-242fb9adaa00c605.js
etag
W/"1ba3207d133ee9c188c72ceaf5b84680"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="webpack-242fb9adaa00c605.js"
framework-1f5321399f6bc226.js
react.dev/_next/static/chunks/ 		178 KB
58 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/chunks/framework-1f5321399f6bc226.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
22553808568f5df039706cbc9d61dc3485899a6e11e48c319ddb8ec0e2a9b261
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::zwz7q-1693146865514-d37b714e5520
age
299713
x-matched-path
/_next/static/chunks/framework-1f5321399f6bc226.js
etag
W/"b11487598616f6766d85b91a3f4af907"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="framework-1f5321399f6bc226.js"
main-78a3b4c2aa4e4850.js
react.dev/_next/static/chunks/ 		92 KB
28 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/chunks/main-78a3b4c2aa4e4850.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
aba5b772db99545122613acc819b2ad83eb32934b936b4141cc3eacc5cdb48b5
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::zwz7q-1693146865514-13b6c59acced
age
298006
x-matched-path
/_next/static/chunks/main-78a3b4c2aa4e4850.js
etag
W/"ae775ea5f545aeb5e88a53bb497cb712"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="main-78a3b4c2aa4e4850.js"
_app-4ef24aa2d43f04c5.js
react.dev/_next/static/chunks/pages/ 		2 KB
1 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/chunks/pages/_app-4ef24aa2d43f04c5.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
c53c535df292391b57f4bde31d86061a9cc4487ee002c82004d4958c0a847334
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::4kpsx-1693146865514-0d3aa1ae23b1
age
299252
x-matched-path
/_next/static/chunks/pages/_app-4ef24aa2d43f04c5.js
etag
W/"d350d66438917f6004f4f5961614a66a"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="_app-4ef24aa2d43f04c5.js"
453-f9f1de57644cb1cf.js
react.dev/_next/static/chunks/ 		21 KB
9 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/chunks/453-f9f1de57644cb1cf.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
41bb5ff248f3db3254681a0c4c1ff5d63560c30ff53e7d068054801560d29076
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::rfrj9-1693146865514-3aa6450a0194
age
296804
x-matched-path
/_next/static/chunks/453-f9f1de57644cb1cf.js
etag
W/"14b54c55acf27ad47b568f4214b9bf9d"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="453-f9f1de57644cb1cf.js"
16-f744c33640083a30.js
react.dev/_next/static/chunks/ 		218 KB
68 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/chunks/16-f744c33640083a30.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
a0a1e5fc16f5f50e29d4c6f096a80aa0d033fe187c547fd9f679d41cc5d62c09
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::t2vbq-1693146865514-549a37aef3da
age
298157
x-matched-path
/_next/static/chunks/16-f744c33640083a30.js
etag
W/"8332ac8e6ea05fbe795fb77e5cc5e319"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="16-f744c33640083a30.js"
%5B%5B...markdownPath%5D%5D-23eba9dbb157bae5.js
react.dev/_next/static/chunks/pages/ 		8 KB
2 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/chunks/pages/%5B%5B...markdownPath%5D%5D-23eba9dbb157bae5.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
b0ba72d36ba577ee0ffc670c945cfc4a5b25f21bd8c3d314cdfb94b1819b61ca
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::xs74b-1693146865514-a6549b54c6a2
age
297810
x-matched-path
/_next/static/chunks/pages/%5B%5B...markdownPath%5D%5D-23eba9dbb157bae5.js
etag
W/"f1c65e61ff696d69b848485bb1d5a837"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="[[...markdownPath]]-23eba9dbb157bae5.js"
_buildManifest.js
react.dev/_next/static/X584Dr_dZ3mLz0hDMKpyG/ 		571 B
755 B 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/X584Dr_dZ3mLz0hDMKpyG/_buildManifest.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
69a78b18dff4a0c0c99c054c03b947bdeca0a90f7d1a277da093b5dea5f5a154
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::xs74b-1693146865515-ba9918fe1c8e
age
298720
x-matched-path
/_next/static/X584Dr_dZ3mLz0hDMKpyG/_buildManifest.js
etag
"76836d9d6f047de8ed98a5edf0358999"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="_buildManifest.js"
accept-ranges
bytes
content-length
571
_ssgManifest.js
react.dev/_next/static/X584Dr_dZ3mLz0hDMKpyG/ 		107 B
334 B 		Script
General
Check archive.org
Download Go to
Full URL
https://react.dev/_next/static/X584Dr_dZ3mLz0hDMKpyG/_ssgManifest.js
Requested by
Host: react.dev
URL: https://react.dev/learn/your-first-component
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.21 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
a6685a286dc63e2d977db766a5776987ffa9d2378bf2d397542b77350ca9912f
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
pl-PL,pl;q=0.9
Referer
https://react.dev/learn/your-first-component
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.5845.110 Safari/537.36

Response headers

date
Sun, 27 Aug 2023 14:34:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1::mvtsg-1693146865535-7a97a527cedd
age
284979
x-matched-path
/_next/static/X584Dr_dZ3mLz0hDMKpyG/_ssgManifest.js
etag
"abd0f62048babe7f370a66177b5bcb6e"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="_ssgManifest.js"
accept-ranges
bytes
content-length
107
Source-Code-Pro-Regular.woff2
react.dev/fonts/ 		10 KB
10 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://react.dev/fonts/Source-Code-Pro-Regular.woff2
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cat factory 1.0
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S1693146868.804592,VS0,VE2
etag
"74f1df56f2aca2cd1e0f4f3e0828623f"
access-control-allow-methods
GET, OPTIONS
content-type
image/jpeg
access-control-allow-origin
*
cache-control
public, max-age=31536000
accept-ranges
bytes
x-amz-cf-id
WU_AazrK913s0bLRdwtk60udlYM092Kiu6enWa2L7AfwzyZShy0EwQ==
x-cache-hits
577, 1

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16 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.

object| 0 object| 1 object| 2 object| documentPictureInPicture function| __setPreferredTheme string| __theme object| webpackChunk_N_E function| __next_require__ object| next object| __NEXT_DATA__ function| __SSG_MANIFEST_CB object| __NEXT_P object| _N_E object| __MIDDLEWARE_MATCHERS object| __BUILD_MANIFEST object| __SSG_MANIFEST

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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=63072000

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.

1e4ad8f7.sandpack-bundler-4bw.pages.dev
i.imgur.com
react.dev
sandpack-cdn-staging.blazingly.io
www.google-analytics.com
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