Illustration of a checklist of security-related HTTP response headers with pass/fail marks

Security Headers Checker

Enter a URL to check for 9 commonly recommended security response headers. Up to 20 checks/hour per visitor.


💻 Show API usage examples (cURL)
curl -sS "https://devops.majbase.com/security-headers/api?url=https://example.com"

Returns {"url", "status_code", "checks": [{"name","present","value","recommendation"}, ...], "present_count", "total_count"}, or {"error": "..."}. Rate limited to 20 checks/hour per source IP; refuses to connect to a hostname that resolves to a private/internal address.