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HeaderGuard: HTTP Header Analyzer

HeaderGuard: HTTP Header Analyzer

A free, web-based micro-SaaS that analyzes HTTP headers for security, performance, and compliance in seconds. No accounts or external APIs required.

Analyzing headers...

Security Analysis Results

Header Comparison

Current Headers

Saved Snapshot

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Auto-Security Grader

Saves users from manually auditing 20+ security headers (15+ min per site)

PHP get_headers() JavaScript Engine 3.2s analysis time

Output: Color-coded report with "Copy Results" button

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GDPR/HIPAA Header Check

Prevents compliance fines by instantly detecting missing privacy headers

JS Header Parser Regulation Templates 4.1s compliance report

Output: "Download as .txt" with violation highlights

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Version Snapshot Compare

Catches dangerous header changes between deployments (undetected regressions)

LocalStorage Diff Algorithm 1.8s visual diff

Output: Side-by-side HTML export ("Copy HTML Table")