If you want to change your primary domain on HostGator, there are a few steps you need to take. First, sign into your account and click on the “Domains” link in the navigation bar. From here, you’ll be able to see all of your domains. To change your primary domain, click on the domain you want to change it to and select the “Configure” button next to it.
On the “Configure” page, you’ll need to enter your new primary domain name and click “Update.” After updating your domain, you’ll need to restart your HostGator account if you want the changes to take effect.