Analyze headers
headers = Strict-Transport-Security: max-age=31536000 X-Content-Type-Options: nosniff
Result: Security analysis complete.
Security Headers Analyzer
Paste HTTP response headers to analyze security headers like HSTS, CSP, and X-Frame-Options.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Frequently asked questions
What are security headers?
HTTP response headers that instruct browsers how to handle content.
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