A domain alias is useful when you have additional domain names that you want people to be able to use to get to your website.
As an example, if you want the visitors of yourdomain.net to be redirected to your main website yourdomain.com instead of hosting multiple independent sites, you can add yourdomain.net as an alias of yourdomain.com.
You have to first login in to your cPanel, and start on the home screen.
- Click the Aliases icon.
- Enter the new domain, then click Add Domain.
That's it! Now when someone browses to yourdomain.net, they'll automatically be redirected to yourdomain.com.
Be sure to set your domain alias's DNS settings to the same as your main domain for the redirection to work properly.