Security Headers Checker

Check important website security headers and get score, grade, warnings, recommendations, redirect response, and raw headers.

Check Security Headers

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What Are Security Headers?

Security headers are HTTP response headers that instruct browsers how to handle your website safely. They can reduce risks from clickjacking, MIME sniffing, XSS, mixed content, and unwanted browser API access.

  • HSTS helps enforce HTTPS.
  • CSP helps restrict scripts, styles, frames, and other content sources.
  • X-Frame-Options helps protect against clickjacking.
  • Permissions-Policy limits access to browser features such as camera, microphone, and geolocation.