Using Sucuri With Pressable
If you are using Sucuri to point your domain name to Pressable, then you must change the SSL Mode
from Partial HTTPS to Full HTTPS for the domain to work properly.
These settings can be adjusted under the “HTTPS/SSL” tab of the Sucuri Firewall dashboard.
On the same page, you will also need to set the Protocol Redirection
option to HTTPS only site:
The settings should look like this: