> Having a separate cPanel for each domain increases the security level. WHM allows you to create a different cPanel for each domain you host.
> Managing Multiple domains through the same cPanel can be quite unpleasant. Here are a few of the more common reasons we see: If you have business oriented or popular sites, there are lots of really good reasons to place them on separate cPanels. WHM also gives you the option to create and manage multiple cPanels.
It gives you a lot more control and flexibility when managing either a few very popular and resource-consuming sites, or a huge number of smaller sites. WHM is an abbreviation used in the hosting industry to name the Web Host Manager program that is cPanel’s masters management tool.