SSL Monitor

Expired SSL certificates are a common cause of downtime and loss of user trust. Browsers display warnings like "Connection not secure". Our SSL Monitor helps you proactively prevent this.

How it works

The SSL Monitor regularly checks the configuration of your TLS/SSL certificate. It is often integrated into the Uptime Monitor but can also be configured separately.

Monitored Metrics

1. Expiration (Expiry)

This is the most critical check. We alert you well before the expiration date so you can renew the certificate.

• Notification: By default, we remind you 30, 14, 7, and 1 day(s) before expiration (configurable).

2. Validity & Chain of Trust

We check if the certificate:

• Is signed by a trusted Root CA.
• Has not been revoked (OCSP/CRL Check).
• Is issued for the correct hostname (domain).

Troubleshooting

If we report an SSL error:

1. Check the expiration date.
2. Check if "Intermediate Certificates" are correctly installed (Chain incomplete error).
3. Ensure the hostname in the certificate (CN or SAN) matches the monitored URL.