Adding Domains for Third Level Hosting
Third level domains are created based on secondlevel domains and have same features as second level domains. Customers can
use your service domain to create third level domains of their own. For
instance, if your second level domain is example.com, your customers can create domains like illustrative.example.com.
Third level domains are registered on your DNS server and need no domain registration company to be registered.
To add a domain for third level hosting, you
need to create a DNS zone and allow third level hosting in the zone
settings.
Third level domain registration will be
available for your users only if you allow it in the plans. See Plan
Creation Wizard for details.