GuardScan, Free Website Security Scanner
Scan any website for security issues in 10 seconds. Free.
GuardScan, Free Website Security Scanner launched on February 27, 2026 with 2 votes, #6,501 of 16,628 launches that month.
What it does
Scan any website for security misconfigurations in 10 seconds. GuardScan checks HTTP security headers, SSL/TLS certificates, DNS configuration (SPF, DMARC, DNSSEC), and cookie security, then gives you a letter grade from A+ to F with clear explanations for every finding. Beta users get platform-specific fix guides for Nginx, Apache, and Cloudflare, plus PDF reports and scan history. No signup required. Just enter a URL and scan.
Scan any website for security issues. Check HTTP headers, SSL certificates, DNS configuration, and cookies. Free instant report with actionable fixes.
Get platform-specific fix guides, one-shot AI fix prompts, PDF reports, deep scans, and scan history. Click the link in the email to sign in. You can close this dialog. One-shot prompt covering every finding on this scan. Paste it into Claude, ChatGPT, Cursor, or Copilot. Stack profile steers platform choices (CF dashboard vs Nginx vs framework middleware). Safe-rollout notes for CSP/HSTS/DMARC are included. Score animations, percentile ranking, and social sharing are now unlocked. You can now safely remove the verification file from yourfrom guardscan.dev
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