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SSL Certificate Monitoring

Get alerted before your SSL certificate expires.

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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
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?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.
Related Monitor Types
🌐HTTP/HTTPS Uptime Monitoring🛡️Security Headers Monitoring📅Domain Expiry Monitoring
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Ready to set up SSL Certificate Monitoring?

Join teams who monitor their infrastructure with Uptrue. Free plan, no credit card required. Want to spot-check first? Run our free SSL certificate checker.

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