I read this bug report about RapidSSL certificates not being recognised by older versions of Android. I've got the necessary certificate chain from here, but I don't have an Android device to test on.
So how can I test if the certificate is set up properly?
The bug report linked to states that:
So to ensure that it works across the board, you can check using the older Equifax certificate which has been recognised by browsers for longer. The command (on Ubuntu at least) is: