SSL certificate monitoring checks your certificate's expiry date, chain validity, and issuer. An expired or broken SSL certificate causes browser warnings that drive visitors away instantly.
⚙️How it works
Uptrue connects to port 443 and retrieves the TLS certificate. It checks the expiry date, validates the certificate chain, and detects self-signed or incomplete chain configurations.
✓What Uptrue checks
- Days until expiry
- Certificate chain validity
- Issuer authority
- Self-signed detection
- HSTS presence
⚠Alert conditions
- Certificate expires in under 30 days (warning)
- Certificate expires in under 7 days (critical)
- Chain validation failure
- Certificate already expired
Why this matters
Search engines penalise sites with invalid SSL. Browsers show full-page warnings. Auto-renewal tools fail silently — monitoring catches it before your users do.
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Free plan · 3 monitors · No credit card required
?Frequently asked questions
How far in advance do you warn about expiry?
We alert at 30 days (warning) and again at 7 days (critical), giving you time to renew.
Can you detect chain issues?
Yes. Uptrue checks the full certificate chain and alerts if intermediate certificates are missing.
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