SSL/TLS certificate monitoring

Expiry notifications

You will be notified 15, 10, 7, 4, 3, 2, and 1 day prior to your SSL/TLS certificate expiring.

If you have automated certificate renewals with Certbot but keep receiving expiry notifications, make sure that a Certbot cron job (that is supposed to renew your certificate before it expires) runs successfully.

New certificates

To make sure that your certificate renewal process is working as expected, you will receive a notification every time your servers present a new SSL/TLS certificate.

This is especially useful if you are using Certbot’s standalone mode, where you have to reload your web server or load balancer yourself after obtaining a new certificate for changes to take place.