HTTP Header Diff Monitor

HTTP Headers Checker - Security Header Audit

benthepythondev/http-headers-checker

Check HTTP response headers for websites, including status code, server, cache settings, redirects and common security headers.

HTTP Headers Security Audit

seeb/http-headers-security-audit

Audit public websites for important HTTP security headers and export practical risk scores, missing headers, and improvement notes for security, SEO, and QA workflows.

Audit a public website's HTTP security response headers in one API call. Returns a letter grade, numeric score, per-header analysis, and actionable recommendations. Built for security teams, devops, and site migration QA.

Analyze HTTP security headers of any website. Check for Content-Security-Policy, HSTS, X-Frame-Options, and 15+ other security headers. Includes security ratings and recommendations. Essential for security audits and compliance testing.

Security Headers Checker API for bulk HTTP security scans. Audit HSTS, CSP, X-Frame-Options, referrer and permissions policies, missing headers, website hardening gaps, and compliance posture. Returns grades, findings, and header evidence for security audits.

Audit HTTP response headers (CSP, HSTS, X-Frame-Options) to verify web application security and compliance standards.

Security Headers Checker

pillowy_travel/security-headers-checker

Analyze HTTP security headers of websites and generate a security score. Detect missing headers like CSP, HSTS, X-Frame-Options, and more. Perfect for web security audits, vulnerability checks, learning, and automated monitoring.

Check CORS response headers (Access-Control-Allow-Origin, -Credentials, -Methods, -Headers, -Expose-Headers, -Max-Age, Vary: Origin) for one or more URLs. Optionally performs a preflight OPTIONS check. Useful for debugging browser/API integrations and spotting risky CORS misconfigurations.

Inspect full HTTP response headers of any URL. Input: urls array. Output: JSON per URL with every response header, security analysis (HSTS, CSP, X-Frame-Options, etc.), and server fingerprint. Priced per URL checked - predictable pay-per-result, no subscription.

Security Headers Checker

s3nafps/security-headers-checker

Check public URLs for common HTTP security headers including HSTS, Content Security Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy. Export a simple website security header report as JSON or CSV.