Help CentreMonitor Types
SSL Certificate — expiry alerts
An SSL certificate monitor checks the expiry date of the SSL/TLS certificate on your domain and alerts you before it expires. An expired certificate causes browsers to show a security warning to your visitors, which can severely damage trust and traffic.
How it works
Alive24x7 connects to your domain and reads the certificate's expiry date. You set a warning threshold — the number of days before expiry at which you want to be alerted. When the certificate's remaining validity falls below that threshold, the monitor status changes to WARNING and an alert is sent.
| Certificate state | Monitor status |
|---|---|
| Valid, more than warning days remaining | UP |
| Valid, but expiring within warning days | DOWN — alert sent |
| Expired | DOWN — alert sent |
| Invalid or untrusted | DOWN — alert sent |
How to configure it
- Set the Monitor type to SSL Certificate.
- Enter the Host — your domain name only, without
https://. For example:yourwebsite.com. - Set the Warning days — how many days before expiry you want to be alerted. The default is 14 days, which gives you enough time to renew before visitors are affected.
We recommend setting your warning threshold to at least 14 days. Most certificate authorities take 1–3 days to issue a renewal, and some hosting providers require additional time to deploy it.
Plan availability
SSL certificate monitoring is available on Starter, Pro, and Team plans.