Parent portals are sites that are defined by a unique URL (
www.e-coffeehouse.com, and so on.). Parent portals allow you to run multiple sites from the same host and same DotNetNuke installation. This means that each domain name is unique but points to the same location, though running on its own application domain. DotNetNuke handles how to route the requests depending on which domain name is entered.
On the other hand, child portals are subportals related to your main portal and share the domain name of their parent. A directory is created on your web server allowing the portal to be accessed through a URL address that includes a parent name and the directory name combined (for example, ...