URL: https://react.dev/learn
Submission: On March 31 via api from FI — Scanned from FI

Summary

This website contacted 5 IPs in 2 countries across 4 domains to perform 54 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 196026.
TLS certificate: Issued by R3 on January 26th 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
1 45 76.76.21.21 16509 (AMAZON-02)
1 2a00:1450:400... 15169 (GOOGLE)
3 2606:4700:310... 13335 (CLOUDFLAR...)
6 2606:4700:303... 13335 (CLOUDFLAR...)
54 5
Apex Domain
Subdomains
Transfer
45 react.dev
react.dev — Cisco Umbrella Rank: 196026
972 KB
6 blazingly.io
sandpack-cdn-staging.blazingly.io — Cisco Umbrella Rank: 484564
514 KB
3 pages.dev
1e4ad8f7.sandpack-bundler-4bw.pages.dev
585 KB
1 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 35
342 B
54 4
Domain Requested by
45 react.dev 1 redirects 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 www.google-analytics.com react.dev
54 4
Subject Issuer Validity Valid
react.dev
R3
2023-01-26 -
2023-04-26
3 months crt.sh
*.google-analytics.com
GTS CA 1C3
2023-03-13 -
2023-06-05
3 months crt.sh
*.sandpack-bundler-4bw.pages.dev
GTS CA 1P5
2023-02-02 -
2023-05-03
3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3
2022-06-13 -
2023-06-13
a year crt.sh

This page contains 2 frames:

Primary Page: https://react.dev/learn
Frame ID: EF0A5039DBD85EF7C2A18DB71592EE82
Requests: 48 HTTP requests in this frame

Frame: https://1e4ad8f7.sandpack-bundler-4bw.pages.dev/
Frame ID: B85011375AB3046478F6D1189FAA641B
Requests: 9 HTTP requests in this frame

Screenshot

Page Title

Quick Start – React

Page URL History Show full URLs

  1. https://react.dev/learn/ HTTP 308
    https://react.dev/learn Page URL

Page Statistics

54
Requests

100 %
HTTPS

75 %
IPv6

4
Domains

4
Subdomains

5
IPs

2
Countries

2071 kB
Transfer

7818 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. https://react.dev/learn/ HTTP 308
    https://react.dev/learn Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

54 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request learn
react.dev/
Redirect Chain
  • https://react.dev/learn/
  • https://react.dev/learn
256 KB
37 KB
Document
General
Full URL
https://react.dev/learn
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
1df04f662b3e3afc2f48cf74528cdcbd1dac4054a1e4842ec88f15578300fc16
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/111.0.5563.146 Safari/537.36
accept-language
fi-FI,fi;q=0.9

Response headers

access-control-allow-origin
*
age
13646
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="learn"
content-encoding
br
content-type
text/html; charset=utf-8
date
Fri, 31 Mar 2023 02:21:25 GMT
etag
W/"578daf3b2d0126a93576f0fffabca1b7"
server
Vercel
strict-transport-security
max-age=63072000
x-matched-path
/learn
x-vercel-cache
HIT
x-vercel-id
arn1:arn1::twrqj-1680229285135-3ab51074054d

Redirect headers

cache-control
public, max-age=0, must-revalidate
content-type
text/html
date
Fri, 31 Mar 2023 02:21:25 GMT
location
/learn
refresh
0;url=/learn
server
Vercel
strict-transport-security
max-age=63072000
x-vercel-cache
MISS
x-vercel-id
arn1::5vszh-1680229285062-f22ca169d1e6
Source-Code-Pro-Regular.woff2
react.dev/fonts/
10 KB
10 KB
Font
General
Full URL
https://react.dev/fonts/Source-Code-Pro-Regular.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
1ad7bcfc6aa0eb7ed8d7ad95196e5743d74881d8698d19322768d3c4ef4c0563
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::nzwzb-1680229285237-686f40a2ac60
age
10046
x-matched-path
/fonts/Source-Code-Pro-Regular.woff2
etag
"9145fb44c6ba87bc0c814908bbee0016"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Source-Code-Pro-Regular.woff2"
accept-ranges
bytes
content-length
9880
Optimistic_Display_W_Md.woff2
react.dev/fonts/
23 KB
23 KB
Font
General
Full URL
https://react.dev/fonts/Optimistic_Display_W_Md.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
335c9d533de28d205ef071d85c8950c0eff5e2301d4a0f970883daad43bd7fe8
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::twrqj-1680229285238-f82dee0c4724
age
1621
x-matched-path
/fonts/Optimistic_Display_W_Md.woff2
etag
"b94d924d7a6e3e5baa6949789140566d"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Optimistic_Display_W_Md.woff2"
accept-ranges
bytes
content-length
23376
Optimistic_Display_W_SBd.woff2
react.dev/fonts/
23 KB
23 KB
Font
General
Full URL
https://react.dev/fonts/Optimistic_Display_W_SBd.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
b59f10bb1099f5ae0bc01feeeea866a165fcff6884ec7f23ba3e093624241a2e
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::5ldls-1680229285238-302282a32011
age
1882
x-matched-path
/fonts/Optimistic_Display_W_SBd.woff2
etag
"2472628901899fae053c0438373dccba"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Optimistic_Display_W_SBd.woff2"
accept-ranges
bytes
content-length
23596
Optimistic_Display_W_Bd.woff2
react.dev/fonts/
23 KB
23 KB
Font
General
Full URL
https://react.dev/fonts/Optimistic_Display_W_Bd.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
3d871b7ae91fc21d06a37410cda737d25a9ef079364108b1618d1b34e432ae06
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::qkg5x-1680229285253-795639f09b55
age
3250
x-matched-path
/fonts/Optimistic_Display_W_Bd.woff2
etag
"ab1a82ac9825f20b65c5b12b9e5b4522"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Optimistic_Display_W_Bd.woff2"
accept-ranges
bytes
content-length
23628
Optimistic_Text_W_Md.woff2
react.dev/fonts/
23 KB
23 KB
Font
General
Full URL
https://react.dev/fonts/Optimistic_Text_W_Md.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
38e55fa471a89bdf7b9829cf03424d13252f381a9ff672da0feab3a611151f19
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::5vszh-1680229285239-56172a40bff1
age
2426
x-matched-path
/fonts/Optimistic_Text_W_Md.woff2
etag
"39fb4f12988ae872b4c5e1032fd35100"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Optimistic_Text_W_Md.woff2"
accept-ranges
bytes
content-length
23468
Optimistic_Text_W_Bd.woff2
react.dev/fonts/
23 KB
23 KB
Font
General
Full URL
https://react.dev/fonts/Optimistic_Text_W_Bd.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
559c4ddcfdefa492d1fb900756ae408859355cb17e6c29d9928ba79235c05027
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::5vszh-1680229285243-1654e7742c99
age
7728
x-matched-path
/fonts/Optimistic_Text_W_Bd.woff2
etag
"0711e7d28a5c4e1474aa9e9431d5f96f"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Optimistic_Text_W_Bd.woff2"
accept-ranges
bytes
content-length
23528
Optimistic_Text_W_Rg.woff2
react.dev/fonts/
22 KB
22 KB
Font
General
Full URL
https://react.dev/fonts/Optimistic_Text_W_Rg.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
916eeb8b981099e4bd15357415eb668d0ce87c471fc8d0a9c6020325521982ca
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::dw9t5-1680229285239-f7287af789ef
age
1583
x-matched-path
/fonts/Optimistic_Text_W_Rg.woff2
etag
"c8d0261ba42237305aa180dfb7314898"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Optimistic_Text_W_Rg.woff2"
accept-ranges
bytes
content-length
22652
Optimistic_Text_W_It.woff2
react.dev/fonts/
25 KB
25 KB
Font
General
Full URL
https://react.dev/fonts/Optimistic_Text_W_It.woff2
Requested by
Host: react.dev
URL: https://react.dev/learn
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
e06ec368e3c0ce630a153d1151138fe8ad41dbdc322a06daaa14b64ff52c7b27
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://react.dev/learn
Origin
https://react.dev
accept-language
fi-FI,fi;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::qkg5x-1680229285239-79dc8c047eb3
age
3591
x-matched-path
/fonts/Optimistic_Text_W_It.woff2
etag
"1aba368d5d58feedad46e833d23d557b"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public, max-age=31536000, immutable
content-disposition
inline; filename="Optimistic_Text_W_It.woff2"
accept-ranges
bytes
content-length
25604
aa94cb6605df11f2.css
react.dev/_next/static/css/
99 KB
19 KB
Stylesheet
General
Full URL
https://react.dev/_next/static/css/aa94cb6605df11f2.css
Requested by
Host: react.dev
URL: https://react.dev/learn
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
5ed4401105e6da7d622da445a2c2fbf26376d3d938e0a37ea016a7e9c3a374a0
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
fi-FI,fi;q=0.9
Referer
https://react.dev/learn
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::fpqph-1680229285238-64595e6100ae
age
4587
x-matched-path
/_next/static/css/aa94cb6605df11f2.css
etag
W/"e9d511aad267ffe27fe429a40612d737"
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="aa94cb6605df11f2.css"
webpack-3315210ae532f56c.js
react.dev/_next/static/chunks/
5 KB
2 KB
Script
General
Full URL
https://react.dev/_next/static/chunks/webpack-3315210ae532f56c.js
Requested by
Host: react.dev
URL: https://react.dev/learn
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
64f509e1b1c9af8a4d1f025c145b2a02eff451eae9f52aea36186419b6df36a3
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
fi-FI,fi;q=0.9
Referer
https://react.dev/learn
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::qkg5x-1680229285276-ba4c5e06b5a9
age
460
x-matched-path
/_next/static/chunks/webpack-3315210ae532f56c.js
etag
W/"29f725863ab8eb09f39285d46e533005"
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-3315210ae532f56c.js"
framework-16708cc67af783c0.js
react.dev/_next/static/chunks/
150 KB
50 KB
Script
General
Full URL
https://react.dev/_next/static/chunks/framework-16708cc67af783c0.js
Requested by
Host: react.dev
URL: https://react.dev/learn
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
b3d0d8a4f99d34bda4cbe764d429ebe6a9ff0938c5ab44e873deae9e8c100711
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
fi-FI,fi;q=0.9
Referer
https://react.dev/learn
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.146 Safari/537.36

Response headers

date
Fri, 31 Mar 2023 02:21:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
arn1:arn1::qkg5x-1680229285298-434414401792
age
2127
x-matched-path
/_next/static/chunks/framework-16708cc67af783c0.js
etag
W/"a9d4a44442d45ce2a65580db45806a63"
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-16708cc67af783c0.js"
main-edaa715c9bd404ce.js
react.dev/_next/static/chunks/
82 KB
27 KB
Script
General
Full URL
https://react.dev/_next/static/chunks/main-edaa715c9bd404ce.js
Requested by
Host: react.dev
URL: https://react.dev/learn
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
5f377877f07512d2c2cc016fc5f024538e0805251859505f7bff1a98c5a450e6
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
fi-FI,fi;q=0.9
Referer
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content-encoding
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Verdicts & Comments Add Verdict or Comment

18 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| 3 object| 4 boolean| credentialless 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

0 Cookies

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.

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