Hosting problem

[Dave A]

Actually a subdomain is subdomain.domain - domain/subfolder is a folder structure (although typically in the hosting back end you'll find the subdomain placed as a subfolder of the public root folder).

The theory with subdomains vs subfolders is a subdomain is "seperated" from the main domain (effectively a new web area as such), whereas subfolders still form part of the domain they're a part of.

Subdomains tend to have content that is either totally different from the main domain (e.g. in a business site you might have your main content in the main domain and blog content in a blog.domain subdomain), or is a different representation of the main domain (such as mobile content in a m.domain subdomain).

[raffle]

That is what I have always understood an Add On domain to be. In my cpanel I have both. I have never tried the Sub Domain