A domain is a unique Internet address for websites that is readable by humans. When working with domains and domain name system (DNS) management, it is helpful to understand what is a fully qualified domain name (FQDN). This article will help explain the concept of an FQDN and what makes up a domain name.
If you use multiple aliases or parked domains in a cPanel account, you may want to change the primary domain used for the cPanel account containing them. Wanting to change the primary domain in cPanel is desirable for multiple reasons, such as: