How to create domain alias In Plesk???
Domain Aliases can be used to redirect traffic from one domain to another.
Step 1. logged in to Control Panel, select the subscription you which to create a domain alias.
Step 2. Select the "Websites & Domains" tab.
Step 3. Select "Add Domain Alias.
Step 4. Enter the domain alias name and leave all other settings at their default values.
Step 5. Click “OK” to create.
Step 6. Once this is complete, confirm that the alias appears under your host domains subscription.