DevOpsKing / Security Tools
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Website Security

Security Headers Checker

Inspect a website's HTTP security headers, get an easy-to-understand A–F grade, and download a report with recommendations.

Checks the public HTTP response. Only scan websites you own or have permission to assess. The grade is an indicative configuration score, not a full penetration test.

Checking response headers…
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Security headers grade

Scan results

Score: —HTTP status: —URL: —

Header-by-header results

Recommendations

Note: Some headers may be intentionally omitted depending on the application, CDN, or hosting setup. Review recommendations before changing production configuration.

DevOpsKing · Security Headers Checker · Scans are performed server-side by this site's PHP endpoint.