The difficulty of working with this one is may not worth the savings. These 3 top level domains are quite often being misrepresented. You have a subdirectory on the host provider's domain. Allows changing to a different host provider and still have the same domain name. Access Provider Provides access to the Internet.
Many access providers are also a host provider and provide email accounts as part of their service.
Host Provider Provides space for web pages as well as connectivity of those pages to the Internet. Special instructions included in a web page text to tell a web browser how to view the page. Software protocol used to receive email. Software protocol used to send email.