Focused diagnostics
Web tools
Run focused web checks with verdicts, measured values, evidence and exact fixes. Every tool is available in the browser and through the public SysGlass API.
HTTP Header Checker
Check any site's HTTP response and security headers free. See status code, protocol, response time, and missing HSTS, CSP, X-Frame-Options and more.
Input: https://example.com
Web Server Audit
Free web server audit. Follow the redirect chain, grade the HTTP security headers (A–F), fingerprint the server/stack, and flag insecure cookies — with exact fixes.
Input: https://example.com
Deep CSP & Header Report
Free deep CSP and security-header report. Renders the page in a real browser to evaluate the effective Content-Security-Policy, grades the headers, and lists concrete directive-level fixes.
Input: https://example.com