What's a Domain?
Did you ever wonder what those funny endings are in Internet addresses-like "dot com"? They're part of the domain. The domain is the name of a network or computer that is linked to the Internet.
You can find the domain in an email address after an @ sign. The email address for the First Lady, for example, is email@example.com. You can see that "whitehouse.gov" is the domain.
The ending of a domain tells you what type it is:
.com = commercial
Many countries have an official extension or country code that appears at the end of a URL (website address) or email address. The extension identifies where the host website or network is located. For example, the web address for the Nobel e-Museum is http://www.nobel.se . The extension ".se" indicates that the information on the Nobel site originates in Sweden. These are some other examples
.fr = France