// CONTINUOUS MONITORING
Continuous SSL/TLS certificate monitoring
One-off checks miss renewals and silent failures. CertFleet re-probes every domain on a schedule and reacts to change in real time.
A scheduled sweep re-checks each monitored hostname and compares against the last known certificate fingerprint.
Change detection flags a new issuer, a shortened validity window, or an unexpected certificate appearing in Certificate Transparency.
Real-time alerts reach the right channel automatically, and a full history lets you audit what changed and when.
It runs on Cloudflare Workers with an external TLS probe — no infrastructure for you to maintain.
▸ START MONITORING
CertFleet probes the live certificate, watches Certificate Transparency, and alerts you 30/14/7/1 days before expiry. Free for 5 certificates, no card.