CORS & HTTP Security Header Auditor | iN2 Tools

Check target website headers for security compliance, testing CSP, HSTS, X-Frame-Options, and CORS limits.

CORS & HTTP Security Header Auditor

Analyze web server HTTP response headers for missing security protections: Content Security Policy (CSP), Strict-Transport-Security (HSTS), X-Frame-Options (XFO), CORS policies, and server information disclosure.

CORS & HTTP Security Header Auditor

Analyze a web server's HTTP response headers for missing security protections (CSP, HSTS, XFO, CORS configuration, and software disclosures).

Critical HTTP Security Headers Explained

HTTP security response headers instruct client web browsers to enable strict security defenses against Cross-Site Scripting (XSS), Clickjacking, MIME sniffing, and MITM attacks.

Essential Security Headers

  • Strict-Transport-Security (HSTS / RFC 6797): Enforces HTTPS connections and disables HTTP downgrade attacks.
  • Content-Security-Policy (CSP): Prevents unauthorized script execution and limits XSS vectors.
  • X-Frame-Options (XFO): Restricts frame embedding to protect against Clickjacking.
  • X-Content-Type-Options: Disables MIME-type sniffing (nosniff).
  • Cross-Origin Resource Sharing (CORS): Governs cross-origin API access rules via Access-Control-Allow-Origin.

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