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security v1.0

OWASP Security Headers Auditor - Audit HTTP Security Policies

Protect your web applications from clickjacking, cross-site scripting (XSS), and data leakage. Paste your website response headers to inspect active security directives recommended by OWASP guidelines.

✓ 100% Free & Unlimited ✓ Browser Local & Private (Zero Cloud Upload) ✓ Instant Real-Time Processing
OWASP HTTP Security Headers Auditor Free Online Tool Preview

Interactive OWASP HTTP Security Headers Auditor workspace processes all data directly inside your browser for maximum privacy.

How to Use OWASP HTTP Security Headers Auditor Online

  1. Step 1: Paste raw HTTP response headers into the auditing box.
  2. Step 2: Review the generated status report checkmarks.
  3. Step 3: Identify missing headers and read remedial implementation tips.
  4. Step 4: Configure your server to append critical defense directives.

Frequently Asked Questions

What is HSTS?

HSTS (Strict-Transport-Security) forces web browsers to communicate with your website exclusively over encrypted HTTPS connections.

Why is Content-Security-Policy (CSP) critical?

CSP prevents Cross-Site Scripting (XSS) by restricting the source domains that browsers are allowed to run scripts from.