What is a Domain?

In an Internet address, the part of the naming system hierarchy that consists of a sequence of characters separated by dots. The 3 most common type of Domains which started the World Wide Web, are .com for company, .org for non-profit organization, .net for network operations. But now a days there are several other types of Domains available on the Internet, giving the Domain persuer a variety of options to choose his perfectly suited domain with the best extensions not just .com, .net or .org but also .name, .biz, .us etc.