Security Headers Analyzer

Locally audit HTTP response headers for defensive security posture, missing hardening controls, and misconfigurations.

Paste Response Headers

Audit Report & Summary

-- Grade
Analyzing...

Header Breakdown Checklist

Header Name Status Recommended Value / Purpose

Core Defense Headers Reference

  • Strict-Transport-Security (HSTS): Enforces secure (HTTPS) connections to the server, protecting against protocol downgrade attacks.
  • Content-Security-Policy (CSP): Prevents XSS and data injection attacks by restricting resource domains.
  • X-Content-Type-Options: Stops browsers from MIME-sniffing away from the declared content-type.

Security Headers Analyzer is a browser-based utility for security-focused developer work. It helps you transform, inspect, generate, or evaluate the relevant input without installing a separate desktop tool.

How to use this tool

Enter or paste the required input, select the available options, then review the generated result before copying or applying it in your project. Check the output in its real target environment when accuracy matters.