What are security headers?

Security headers are HTTP response headers that improve security, e.g. Strict-Transport-Security (HSTS), Content-Security-Policy (CSP), X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and Permissions-Policy. This tool checks if they are set and suggests improvements.

Is the security headers analyzer free?

Yes. This free security headers checker is free to use with no signup required. It analyzes the main recommended headers and gives pass/fail with recommendations.

Free Tool

Security Headers Analyzer

Check if your site sends recommended security headers (HSTS, CSP, X-Frame-Options, etc.) and get improvement tips.

This free security headers checker analyzes whether your site sends recommended HTTP security headers such as HSTS, CSP, X-Frame-Options, and X-Content-Type-Options. Get a simple pass/fail and short recommendations for missing headers.

Frequently asked questions

What are security headers?: Security headers are HTTP response headers that improve security, e.g. Strict-Transport-Security (HSTS), Content-Security-Policy (CSP), X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and Permissions-Policy. This tool checks if they are set and suggests improvements.
Is the security headers analyzer free?: Yes. This free security headers checker is free to use with no signup required. It analyzes the main recommended headers and gives pass/fail with recommendations.