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Security Analysis Results

react.dev

Comprehensive domain security and infrastructure analysis

Live Website Preview

website screenshot of https://react.dev/learn/you-might-not-need-an-effect#recap

No Security Risks Detected

This domain appears to be safe and secure

100%
Score

Disclaimer: This assessment is based on automated analysis of publicly available information. Results are for informational purposes only. For critical applications, consult security professionals.

Scan Information

Last checked:June 29, 2025 18:41:45
Target URL:https://react.dev/learn/you-might-not-need-an-effect#recap
Scan Complete

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Page Information

Target URL
https://react.dev/learn/you-might-not-need-an-effect#recap
Page Title
You Might Not Need an Effect – React
react.dev faviconSite Favicon
Status
Active

Host Information

Domain
react.dev
Server
Vercel
Country
United States
IP Address
66.33.60.35
ASN Information
16509
AMAZON-02

Technologies

Vercel logo
Vercel
PaaS
HSTS logo
HSTS
Security
Google Analytics logo
Google Analytics
Analytics

SSL Certificate

HTTPS Enabled
Secure
Certificate Issuer
R10
Valid From
2025-06-13 14:07:27
Valid Until
2025-09-11 14:07:26
Subject Name
react.dev

Performance Statistics

62
Total Requests
4
Domains
4
IP Addresses
1.36 MB
Transfer Size
Content Size4.25 MB

HTTP Headers

accept-ranges
bytes
access-control-allow-origin
*
age
83867
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="you-might-not-need-an-effect"
content-encoding
br
content-length
60642
content-type
text/html; charset=utf-8
date
Sun, 29 Jun 2025 18:41:52 GMT
etag
"e2ab589f5db4130ff06645ccc030db40"
last-modified
Sat, 28 Jun 2025 19:24:05 GMT
server
Vercel
strict-transport-security
max-age=63072000
x-matched-path
/learn/you-might-not-need-an-effect
x-vercel-cache
HIT
x-vercel-id
cdg1::qb4cf-1751222512605-e5a35c29013e
16 headers detected

Technology Stack Analysis

Vercel

Vercel

PaaS

Vercel is a cloud platform for static frontends and serverless functions.

HSTS

HSTS

Security

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

Google Analytics

Google Analytics

Analytics

Google Analytics is a free web analytics service that tracks and reports website traffic.

Website Cookies 2

_ga

.react.dev

Value
GA1.1.1761894848.1751222513
Expires:8/3/2026

_ga_B1E83PJ3RT

.react.dev

Value
GS2.1.s1751222513$o1$g0$t1751222513$j60$l0$h0
Expires:8/3/2026

External Links 13

Open on GitHub

github.com

Analyze
Target URL
https://github.com/facebook/react/releases

“memoize”

en.wikipedia.org

Analyze
Target URL
https://en.wikipedia.org/wiki/Memoization

CPU Throttling

developer.chrome.com

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Target URL
https://developer.chrome.com/blog/new-in-devtools-61/#throttling

“race condition”

en.wikipedia.org

Analyze
Target URL
https://en.wikipedia.org/wiki/Race_condition

Meta Open Source

opensource.fb.com

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Target URL
https://opensource.fb.com/

@sawaratsuki1004

twitter.com

Analyze
Target URL
https://twitter.com/sawaratsuki1004

Code of Conduct

github.com

Analyze
Target URL
https://github.com/facebook/react/blob/main/CODE_OF_CONDUCT.md

React Native

reactnative.dev

Analyze
Target URL
https://reactnative.dev/

Privacy

opensource.facebook.com

Analyze
Target URL
https://opensource.facebook.com/legal/privacy

Terms

opensource.fb.com

Analyze
Target URL
https://opensource.fb.com/legal/terms/

React on Facebook

www.facebook.com

Analyze
Target URL
https://www.facebook.com/react

React on Twitter

twitter.com

Analyze
Target URL
https://twitter.com/reactjs

React on Github

github.com

Analyze
Target URL
https://github.com/facebook/react

Requested Domains 4

786946de.sandpack-bundler-4bw.pages.dev

Unknown Type
No category information available

react.dev

Apex domain
Categories
TechnologyTechnology

region1.google-analytics.com

Unknown Type
No category information available

www.googletagmanager.com

Unknown Type
No category information available
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