HTTP Header Checker

The HTTP Header Checker displays all HTTP response headers sent by your server, revealing caching, security, and performance configuration.

Header types:

• Status codes (200, 301, 404, etc.)
• Cache-Control and Expires
• Content-Type and encoding
• Security headers (HSTS, CSP, X-Frame-Options)
• Server and technology info
• Compression headers

Proper HTTP headers improve security, enable browser caching, and optimize page delivery. Check that security headers are set and caching is configured correctly.