HTTP Headers Analysis for https://stackoverflow.com
Analyzed on November 02, 2025 at 19:09 UTC
URL: https://stackoverflow.com | Status: 200
18 Headers
Total Found
HTTP Security Headers
Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Weak
upgrade-insecure-requests; frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Significantly strengthen CSP directives
- • Add X-Content-Type-Options: nosniff
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
Performance Headers
3 headers
Connection
Performance
keep-alive
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding
Caching Headers
1 headers
Cache-Control
Caching
private
Content Headers
1 headers
Content-Type
Content
text/html; charset=utf-8
Server Headers
1 headers
Server
Server
cloudflare
CORS Headers
0 headers
No CORS headers found
Cookies Headers
1 headers
Set-Cookie
Cookies
_cfuvid=iLNWInZepsU041YXWNejI3bFbhKCFeQfHRmxNRGHXd0-1762110596302-0.0.1.1-604800000; path=/; domain=.stackoverflow.com; HttpOnly; Secure; SameSite=None
Other Headers
8 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9985edda1d7fc983-IAD
Date
Other
Sun, 02 Nov 2025 19:09:56 GMT
Feature-Policy
Other
microphone 'none'; speaker 'none'
X-Clacks-Overhead
Other
GNU Terry Pratchett
X-Dns-Prefetch-Control
Other
off
X-Request-Guid
Other
5de3fd5d-78d2-43ca-a465-22ade1d7ac63
X-Worker-Origin-Response-Time
Other
92000000
Recommendations
Enable compression (gzip/brotli) to improve performance
Analysis completed in 298ms