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Services

Threat Intelligence

Threat Intelligence & Dark Web Monitoring Brand & Domain Protection

Security Operations

Vulnerability Assessment & Penetration Testing Red Team Operations Incident Response & Compromise Assessment

Microsoft Security

Microsoft 365 & Entra ID Security Assessment Entra ID & Conditional Access Hardening Microsoft Defender XDR Deployment & Tuning Microsoft Sentinel & Managed Detection

Tools Labs Threat Intel About Contact Request assessment

Tool 13 · Web

Security header grader

Paste a site's response headers and get a grade for CSP, HSTS, framing, cookies and information leaks, with fixes.

Get headers: curl -sSI https://example.com

Raw response headers

Privacy

Headers are parsed entirely in your browser. Browsers cannot read another site's headers directly, so paste them from curl or your browser dev tools.

Related

Certificate inspector Phishing URL analyzer

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Threat Intelligence

Threat Intelligence & Dark Web Monitoring Brand & Domain Protection

Security Operations

Vulnerability Assessment & Penetration Testing Red Team Operations Incident Response & Compromise Assessment

Microsoft Security

Microsoft 365 & Entra ID Security Assessment Entra ID & Conditional Access Hardening Microsoft Defender XDR Deployment & Tuning Microsoft Sentinel & Managed Detection

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