How to Adding Domains in Plesk
To host a new website with a second-level domain name, perform the following steps:
1 – Logged in to Plesk.
2 – Go to Websites & Domains.
3 – Click Add Domain.
4 – Enter the Domain name.
5 – Under Hosting type, select the Website hosting option.
6 – Set the Document root
7 – Click OK.