SSL Certificate Checker

SSL certificates encrypt the connection between your users and your website. Without a valid SSL certificate, browsers will show security warnings that scare away visitors.

Expired or misconfigured SSL certificates are a common cause of outages. Your site might be running fine, but if your SSL cert expires, browsers will block access entirely.

UptimeSignal monitors your SSL certificates and alerts you before they expire, so you never get caught by an unexpected SSL-related outage.