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All check types
Web & Domains

SSL Certificate Monitoring

SSL certificate monitoring tracks the validity window of your TLS certificates and alerts well before expiry — because a lapsed cert looks like a full outage to every visitor.

Catch cert expiry before browsers start warning users

What it checks

  • Days until certificate expiry
  • Certificate chain validity and issuer
  • Protocol and hostname mismatches

Set it up

  1. 1Add an SSL monitor for your domain
  2. 2Set the alert threshold (e.g. warn 14 days before expiry)
  3. 3Route alerts to whoever owns certificate renewal

FAQ

Does it work with Let's Encrypt auto-renewal?

Yes — and it is the safety net for exactly that: if auto-renewal silently fails, the monitor alerts while you still have days to fix it.

Related check types

HTTP/HTTPS MonitoringThe check every outage story starts withDomain Expiry MonitoringThe outage that takes everything — site, mail, DNS — at once

Start monitoring in minutes

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