How to create a domain alias in Plesk
A domain alias is where two or more domain names refer to the same website content in a hosting account. Essentially a domain alias allows a website to become available from another domain name. For example, ukhost4u.net could be a domain alias of ukhost4u.com, and they would both display the same content if a user searched for either URL in a web browser.
Domain aliases can be created in the Plesk control panel. First, login to Plesk and click the Websites & Domains section.
Next, click the Add Domain Alias button.
You’ll now be taken to a page where you can enter the details for the new domain alias you wish to create.
Now you must enter the name for the domain alias you wish to create, and choose which domain the alias should point to.
Then you can choose whether to synchronize the DNS zones, enable the web and mail server, and redirect the website with a HTTP 301 code.
Finally, click OK to finish creating the domain alias.