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— Security Headers Checker

Security Headers Checker

Quick Tips

  • • This tool runs entirely in your browser - your data stays private.
  • • Press Ctrl+V (Cmd+V on Mac) to quickly paste text.
  • • Use the Copy button to save your result to clipboard.
  • • Bookmark this page for quick access!

Analyze HTTP security headers (CSP, HSTS, X-Frame-Options, etc.) for any website.

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