What is a domain reseller?

That's us, Bravenet! :)

Whereas a registrar handles storing and distributing all of the DNS records, we, the domain reseller, handle making it possible for you to register, renew, and manage domains. We are also a hosting reseller, of course, and can also host the website(s) associated with your domain names. You can transfer domain names between domain resellers and domain registrars, if you purchased your domain registration from one location and want to move it to a different service.