Free Tool
HTTP Header Analyzer
Inspect response headers, security directives, and caching policies.
Header inspection
Security audit
Instant analysis
Response Headers
Analyzes all HTTP response headers from the server.
Security Headers
Checks for security-related headers like HSTS, CSP, X-Frame-Options.
Cache Policies
Evaluates caching headers for performance optimization.
Why Headers Matter
HTTP headers control security, caching, and how browsers handle your content. Missing or misconfigured headers can expose your site to attacks.
SecurityProtection
SpeedCaching
SEOSignals
Frequently Asked Questions
Which headers are most important?
Security headers (HSTS, CSP, X-Frame-Options) and caching headers (Cache-Control) have the biggest impact.
How do I add headers?
Headers are typically configured at your web server, CDN, or through framework settings.