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Audit Raw HTTP Response Headers & HAR Payloads for Security & Caching

Paste raw HTTP response headers or a HAR JSON entry to audit HSTS, CSP, X-Frame-Options, CORS policies, and Cache-Control directives with 100% local privacy.

✓ OWASP Header Security Audit Target Keyword: "http security headers and har analyzer online" (90,000/mo) Est. Ad RPM: $18 – $28
INPUT SOURCE 300 chars
LIVE PROCESSED OUTPUT UTF-8 • CLIENT-SIDE 
Processing...
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Ready • 100% local execution Server Cost: $0.00 • Latency: <5ms

How to Use the HTTP & HAR Analyzer

  1. STEP 01
    Paste raw HTTP response headers from curl -I or Chrome DevTools into the left pane.
  2. STEP 02
    Review the parsed JSON header dictionary and automated OWASP security posture audit.
  3. STEP 03
    Fix missing headers (like Content-Security-Policy or X-Frame-Options) using the recommended snippets.

Frequently Asked Questions (HTTP & HAR Analyzer)

Why audit HTTP headers locally in the browser instead of an external scanner?

Internal staging servers, localhost endpoints, and authenticated API responses cannot be reached by public scanners and often contain sensitive cookies.