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Free Tool - Security Header Checker
Check HTTP security headers of any URL and get a security grade with detailed recommendations. Identify missing headers that could expose your site to attacks.
Enter URL to Check
What We Check
- Strict-Transport-Security (HSTS)
- Content-Security-Policy (CSP)
- X-Content-Type-Options
- X-Frame-Options & more...
Security Grade
Error
Header Results
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Enter a URL and click "Check Headers" to analyze security headers.