Three steps to stay ahead of SSL/TLS certificate expirations with no surprises and no outages.
Add any TLS-enabled host to monitor. Supports HTTPS, implicit TLS, STARTTLS for mail and directory protocols, and any custom port. Bulk upload via CSV or REST API.
Continuously checks certificates for expiration, chain validity, hostname matching, revocation status, and algorithm strength. Check frequency is configurable to match your monitoring requirements.
Receive notifications at fully configurable thresholds, anywhere between 0 and 90 days before expiration. Alerts cover 8 event types including expiration, hostname mismatches, CA trust failures, chain issues, connection failures, fingerprint changes, and missing CAA records. Configure contact groups and notification schedules, and integrate with incident management via webhooks and API callbacks.
What we check on every certificate, beyond just the expiration date.
Validates entire certificate chains, not just the end certificate. Verifies intermediate certificates and ensures chains connect to a trusted root CA. Many outages stem from missing or expired intermediate certificates, and we catch these before they reach users.
Set up custom alert thresholds anywhere between 0 and 90 days before expiration. Match alerts to your certificate renewal workflow with early warnings, team reminders, and urgent escalations, all independently configurable.
Alerts when a certificate fingerprint changes, whether from a routine renewal, an unexpected replacement, or a potential substitution attack. Keep a clear picture of what's running on your infrastructure.
Every check goes beyond expiration. Hostname validation confirms the certificate covers the service it protects. Revocation checks detect compromised certificates pulled by their CA. Algorithm strength checks flag weak or deprecated cryptographic algorithms before they become a compliance issue. DNS CAA record validation ensures only authorized CAs can issue certificates for your domains.
Sign up and start monitoring in minutes. No contracts, no minimums.