SSL & Web Headers100% In-BrowserRaw Headers
HTTP Header Analyzer
Inspect raw response headers, caching directives, server signatures, and potential information leaks.
Real-time processing·No server uploads·Zero telemetry
http-header-analyzer
LIVE
Paste HTTP Response Headers
Tip: Use
curl -I https://example.com to fetch headersA100
Security Score
A+ grade · 6 of 6 security headers present
Content-Security-Policy
default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; object-src 'none';
Strict-Transport-Security
max-age=63072000; includeSubDomains; preload
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
geolocation=(), camera=(), microphone=()
How to Use HTTP Header Analyzer
01
Paste raw HTTP headers or enter a target URL.
02
View headers categorized by Security, Caching, and Server Info.
03
Flag headers that leak server software versions.
Privacy Guarantee
HTTP Header Analyzer runs 100% client-side in your web browser. Your data, passwords, keys, and files are processed using the Web Crypto API and never transmitted to any server. Zero telemetry, zero storage, zero cloud processing.
Frequently Asked Questions
Why should you hide the 'Server' or 'X-Powered-By' header?
Hiding version banners prevents attackers from easily fingerprinting known software vulnerabilities.
Discover More