All of them give you the complete access to control and manage your domain using your web browser.
Subdomains: Subdomains feature allows you to create subdomains under your primary domain.
Addon Domains: Addon domains allow you to add a domain to your hosting that is different from your primary domain. Using this feature, you can host different websites with different domain names
Parked Domains: This feature allows you to add a domain to your hosting that will act as a mirror to your primary domain.
Redirects: It allows you to redirect the visitors from your any domain to your primary domain.
Simple and Advanced DNS Zone Editor: With both of these features, you are able to add, edit or delete your DNS settings according to your requirement