Regarding SSL, the system will attempt to automatically secure that domain with the best-available existing certificate after you create an addon domain, parked domain, subdomain, or main domain.
If no certificate exists, the system will generate a self-signed certificate to secure the new domain.
Since AutoSSL is enabled for all hosting packages, all you need to do is to make sure that the A record for the addon is pointing to the server hosting your account or the addon domain.
The system will add a request for an AutoSSL certificate to secure the new domain and install it when it becomes available.
