CyberBouncer - free website security scanner
Paste any URL and CyberBouncer runs an instant, non-intrusive security sweep - checking TLS/SSL, HTTP security headers, cookie flags, DNS email authentication (SPF and DMARC), and reputation - then grades the site from A to F with a plain-English report and concrete fixes. Free, no login required.
What CyberBouncer checks
- HTTPS / TLS configuration and certificate validity
- HTTP security headers: HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy
- Cookie flags: Secure, HttpOnly, SameSite
- Email authentication DNS records: SPF and DMARC
- Threat reputation and server fingerprint
Check a site before you visit it, test sites you are building before they ship, or sign in to monitor sites continuously. We check IDs at the door.
How the grade works
Every scan produces a 0-100 score. Grade bands are fixed and published: A = 90-100, B = 80-89, C = 65-79, D = 50-64, F = below 50. Grades are point-in-time, based on objective, reproducible checks. Read the full scoring methodology, including how to dispute or re-scan a result.
Plans and pricing
- Free: unlimited one-off scans, full graded report, PDF export, LLM hand-off - no login. Registered users track 1 site with monitoring and alerts.
- Pro ($9/month or $90/year): monitor up to 10 sites, owner-verified deep scan, public report page + Verified badge, weekly email digest.
- Agency ($39/month or $390/year): everything in Pro for up to 50 sites, plus white-label PDF reports with your own branding.
See plans and pricing for details.