domain name 
A domain name is the part of a URL that follows the "http://www." Domain names represent one or more IP addresses (for instance, CNET's domain name is CNET.com, but CNET.com has several IP addresses). A global network of DNS servers translates domain names into their corresponding IP addresses. All domain names have a top-level domain--that is, the "dot" extension that indicates whether a domain belongs to a commercial enterprise (.com), an educational institution (.edu), a government body (.gov), the military (.mil), a network (.net), or a nonprofit organization (.org). Business (.biz), name (.name), museum (.museum), and information (.info) became available in 1999 to expand the number of domains. A variety of top-level country code domains have also been added, such as Tuvalu (.tv) and Western Samoa (.ws).