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Server-side diagnostic

HTTP Security Headers Checker

Inspect key HTTP security response headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy) with explanations and scope limits.

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Scope notice: Inspects HTTP response headers only; this is not a full malware or vulnerability scan.

How It Works

Enter a public HTTPS/HTTP URL to evaluate present and missing defensive headers. Note: this is a header inspection, not a full malware or vulnerability scan.

Frequently Asked Questions

Is this a complete vulnerability scan?
No. It inspects HTTP response headers only and does not scan application code, TLS ciphers, or malware.