HTTP Header Inspector
NewAnalyze HTTP response headers to identify security issues, information disclosure, and configuration best practices. Categorizes headers into: security headers (green), information disclosure headers (amber warning), cookie headers (blue), CORS headers, caching headers, and standard headers. Highlights concerning headers that expose server version, technology stack, or internal IP addresses. Essential for web security audits.
HTTP Header Inspector
Parse and analyze HTTP response headers. Highlights security headers and information disclosure headers.
application/json; charset=utf-8
nosniff
DENY
max-age=31536000
no-store, no-cache
session=abc123; HttpOnly; Secure; SameSite=Strict
nginx
Express
How to Use HTTP Header Inspector
- 1Paste HTTP response headers (one per line, Name: Value)
- 2View color-coded categories (security, info disclosure, etc.)
- 3Check for server version leakage warnings
- 4Review cookie security attributes
Your Privacy is Protected
HTTP Header Inspector runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
Frequently Asked Questions
Which headers reveal server information?
Server, X-Powered-By, X-AspNet-Version, X-Generator, Via, X-Backend-Server, and similar headers expose server software versions that attackers can use to target known vulnerabilities.
Why Use This Tool?
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