Register a Internet Domain Name - Domain Name Help FAQ
Internet Domain Registration Help FAQ
What is "Top Level Domain (TLD)" ?
The portion of a traditional domain name that comes after the dot. So, in rwgusa.com, the top level domain is .com. The generic top level domains (gTLDs) are .com, .net and .org; there are also country code top level domains (ccTLDs) such as .ca, or .uk.