HTTP Security Headers Checker — HSTS, CSP, Grade A-F

Security headers checker for any URL: pass a list of URLs, get one JSON record per URL with the observed CSP, HSTS, X-Frame-Options and related headers, missing-header findings, and an A–F security grade. $0.02 per URL checked.

Audit HSTS, CSP, X-Frame-Options, Referrer-Policy and other HTTP security headers in bulk.

Report CSP, HSTS, X-Frame-Options, and other security headers with a simple A-F grade.

Bulk HTTP Security Headers Analyzer - CSP, HSTS

logiover/bulk-http-security-headers

Analyze HTTP security headers for thousands of URLs. Checks CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and more. Returns pass/fail per header plus a numeric security score. No API key, export to CSV/JSON. Ideal for security audits and compliance scanning.

HTTP Security Headers Analyzer

andok/security-headers-analyzer

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

HTTP & Security Headers Auditor

bgfc97/http-security-headers-audit

Audit any list of URLs: status, final redirect, HTTPS, server, security headers (HSTS, CSP, X-Frame-Options...), a security score, page title and CMS/generator. No key, no proxy.

Check security headers (CSP, HSTS, XFO, etc.) on any website. HTTP-only, no browser needed.

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.

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.