For this, you must buy a multi-domain certificate, which is also compatible with AutoInstall SSL™.
Once you have purchased the Multi-Domain SSL certificate and have received your Token, you can login to your hosting control panel (i.e. cPanel, Plesk, etc.), click on the AutoInstall SSL™ icon, and insert the Token.
Once you select the Domain/Webspace, you can then click on the “Add Domain” button underneath.
After clicking “Add Domain”, you can then add whichever additional domain you wish to cover in the new field.
You click the “Add Domain” button for as many domains as you have purchased and then proceed as usual throughout the rest of the process.
