Domains must be registered with a valid registrar before they can be set as an alias. Also, a domain will not be functional unless configured to point to the same name servers as your primary domain.
To park a domain on your account:
- Log in to cPanel.
- In the Domains section, click the Aliases icon.
- Under Create a New Alias Domain, enter the domain name you would like to park on top of your primary domain.
- Click Add Domain.
Tada! You have just parked your domain!