SSL Certificate Monitoring
Catch SSL certificate problems before your visitors do.
Daily monitoring for expiry, weak TLS, and hostname mismatches — with email alerts in time to fix them. Free for up to 3 domains.
Start monitoring — free
Up to 3 domains, email alerts, no account password to manage. Enter your email and the first domain to watch.
Expiry alerts
Emails at 30, 14, 7, and 1 days before expiry — and the moment a cert expires.
Security checks
A TLS security grade and hostname-mismatch alerts for any HTTPS endpoint — sites, APIs, mail servers, any port.
No password
We email you a private dashboard link. Bookmark it to manage your monitors.
How it works
- Enter your email and a domain above.
- We check the certificate immediately and every day after.
- When expiry approaches, we email you so you can renew in time.
Why it matters: expired certificates cause outages, browser security warnings, and lost trust — and they always seem to expire at the worst time. Read more in our guide on certificate expiration monitoring.