ICANN publishes the complete list of TLD registries and domain name registrars. Registrant information associated with domain names is maintained in an online database accessible with the WHOIS protocol. For most of the 250 country code top-level domains (ccTLDs), the domain registries maintain the WHOIS (Registrant, name servers, expiration dates, etc.) information.
Bluehost uses cPanel as its site management system. The Utah-based company has done an excellent job adding simple, but useful customizations to the cPanel layout. Sections are very clearly laid out and the process is simple to follow. It strikes a great balance between simplicity for beginners, and having the functions needed for more advanced users.
A fully qualified domain name (FQDN) is a domain name that is completely specified with all labels in the hierarchy of the DNS, having no parts omitted. Labels in the Domain Name System are case-insensitive, and may therefore be written in any desired capitalization method, but most commonly domain names are written in lowercase in technical contexts.