In cPanel/WHM terms, an add-on domain is a VirtualHost with its own set of log files, stats, etc, and is treated as a subdomain.  A parked domain is simply an alias to an already existing domain.


For example, if:, is an add-on domain for – it will contain its own files and is a unique website. is a parked domain – it will not have its own unique files or logs, and the domain itself points to some other site, such as or or, etc.