Better uptime and security with Cert Spotter.

Cert Spotter monitors Certificate Transparency logs and alerts you when a digital certificate is issued for one of your domains. Better visibility means better uptime and security. Learn more

The US Department of Homeland Security's Emergency Directive 19-01 requires all federal agencies to start monitoring Certificate Transparency logs by February 5, 2019 to detect DNS infrastructure tampering. Sign up for Certificate Transparency monitoring by Cert Spotter

Protect Infrastructure

Cert Spotter detects unauthorized certificates so you can protect yourself from compromises and data theft.

Avoid Outages

Cert Spotter helps inventory your certificates so you know when they expire, before you experience a costly outage.

Enforce Policy

Cert Spotter provides visibility into your use of key sizes, cryptographic algorithms, and compliance with security policies.

Subscribe to Alerts

Cert Spotter emails you when an unknown certificate is detected for a domain on your watchlist. Review detected certificates through your SSLMate dashboard. Start monitoring now

Get the Source

Cert Spotter is open source so you can set up and run your own monitor. Cert Spotter on GitHub

Query the API

Query the certificates for a domain using a simple JSON API. Enter your domain to try it out. Sign up for API access



Start Monitoring with Cert Spotter Today

Better visibility means better uptime and security. Cert Spotter gives you the visibility you need for your certificates.

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