Terms

Certfly is provided as-is. Probe results are best-effort: hosts that gate by IP, drop on TLS, or serve different certs to different clients may show inconsistent results. We surface what we observe, including parse errors, honestly.

Subscription: $9/month, cancel any time from your account.

You must own or have permission to monitor the hostnames you add. Don't use this to mass-scan third-party infrastructure.