Never let a certificate or a domain quietly expire.

An expired SSL certificate puts a full-page warning in front of every visitor. A lapsed domain takes your site and your email down at once. Both are completely avoidable, and both still happen to businesses of every size.

SSL certificates

• Reminders 30, 14 and 3 days before the certificate expires (you can change these).
• Alerts when the certificate doesn't match your site's name, the chain is incomplete, or it was issued by someone browsers don't trust.
• The issuer and expiry date on your site's page, so you know whether renewal is automatic (Let's Encrypt and most hosts renew for you) or a job for someone.

Certificates are checked every 6 hours.

Domain registration

• Pingerer reads your domain's public registration record (RDAP) once a day and reminds you 30 and 7 days before it expires.
• The registrar's name is in the alert, so you know where to log in to renew.
• It works for any domain whose registry publishes RDAP, which covers almost every common ending. If a registry doesn't, we say so instead of guessing.

Why both matter

Automatic renewal fails quietly: an expired card, a registrar account in a former employee's name, a certificate tool that stopped running after a server move. A reminder a month out gives you time to fix it calmly.

Read more: SSL checks and domain checks.