AI Visibility Server Headers Analyzer

Inspect response headers, cache directives, and security header posture for public web pages.

TLDR

The Server Headers analyzer inspects HTTP response headers, cache directives, and security header posture for any public URL.

What the server headers tool analyzes

Enter any public URL and the tool fetches its HTTP response headers, then evaluates cache control directives, security headers, content type, and server configuration. This helps identify misconfigured caching, missing security headers, or server-side issues that could affect crawlability and trust signals.

Response headers directly influence how search engines and AI crawlers interact with your content. Proper cache headers ensure fresh content is served, security headers build trust, and correct content types prevent parsing errors.

Key headers evaluated

The analyzer reviews common headers that affect both traditional SEO and AI crawlability.

  • Cache-Control and ETag: whether content is cacheable and how freshness is validated.
  • Content-Security-Policy: whether the site enforces CSP to prevent XSS and injection attacks.
  • Strict-Transport-Security: whether HSTS is enabled to enforce HTTPS connections.
  • X-Content-Type-Options, X-Frame-Options: additional security posture indicators.
  • Content-Type and charset: ensures correct MIME type and encoding for parser compatibility.

Why headers matter for AI visibility

AI crawlers and answer engines need to trust the pages they index. Missing security headers or broken cache policies can downgrade a page in crawl priority. The headers tool gives you visibility into these invisible factors that audits alone cannot detect.