TLS Certificate health checker

We can check if your HTTPS certificates are valid, trusted in modern browsers and have the correct certificate chain.

These same checks happen every 5 minutes to alert you of unwanted changes if you sign up for an Oh Dear account.

Recent tests

The following websites have been tested recently. You can click through to view their results.

These tests are based on the actual checks Oh Dear performs for its subscribers. On top of these availability checks we can also send a wide variety of notifications to keep you informed about your websites' availability.

Want to learn more about what Oh Dear can do? Have a look at our feature set.