An expired certificate turns your website into a browser warning page in a second. Siteload checks your certificate every day and reminds you in time - even when the automatic renewal silently stopped working.
Check the certificate expiration date, covered domains, issuer, chain and TLS version. More about the SSL Checker
Free and without registration. The check is made from our server, so the timings include the network distance to it.
Automatic renewal is exactly what breaks silently: a changed DNS record, a firewall rule, a full disk or a web server that was not reloaded. The reminder 14 days before the expiration means the renewal didn't happen when it should have.
The certificate is valid by date, but browsers still show a warning: the intermediate certificate is missing, the certificate doesn't cover the domain (e.g. www) or it is self-signed. Our free SSL checker shows the exact reason.
Certificates valid for 30 days or less are renewed automatically every few days, so we don't send "expires soon" reminders for them. You still get an email if such a certificate expires or stops being trusted.
No. A certificate check is one secure connection a day and the certificate is public anyway, so ownership confirmation is needed only for load tests and uptime monitoring.
Test how much traffic your website handles, get an email when it goes down and never miss an SSL certificate renewal.
Turn on SSL reminders