HTTP Security Headers Audit & Checker
Protect your website and users against clickjacking, cross-site scripting (XSS), and man-in-the-middle attacks. Inspect your live website's HTTP security headers and get an actionable security score from A+ to F with copy-paste remediation rules.
How to Use Web Security Headers Checker & Audit
Enter Domain URL
Input any public domain or URL (e.g., https://example.com).
Run Security Audit
Click Scan to inspect live HTTP response headers.
Review Grade & Fixes
Examine your overall security grade and copy ready-made .htaccess / Nginx configuration fixes.
About Web Security Headers Checker & Audit
Modern web security relies heavily on defense-in-depth provided by HTTP headers. For example, HTTP Strict Transport Security (HSTS) instructs browsers to refuse unencrypted HTTP connections permanently, preventing SSL-stripping attacks.
Key Features
- Audits 6 critical security headers: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy
- Calculates an overall security score from A+ to F
- Clear explanation of risk for each missing or misconfigured header
- Drop-in remediation snippets for Apache (.htaccess), Nginx, and Next.js / Cloudflare
- Fast, private non-intrusive public header inspection
Frequently Asked Questions
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