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📡 HTTP Header Checker

Analyze HTTP response headers, security headers, and server configuration

⏳ Fetching headers...

Response Headers

Note: Some headers may be hidden due to CORS policies. For complete headers, use server-side tools.

What are HTTP Headers?

HTTP headers are metadata sent with every request and response. They control caching, security, content type, and more.

Important Headers to Check

Content-Security-Policy — Prevents XSS attacks
Strict-Transport-Security — Forces HTTPS
X-Frame-Options — Prevents clickjacking
Cache-Control — Controls browser caching
Server — Reveals server software (security risk)

Security headers are essential for protecting users. Missing headers can expose vulnerabilities.