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domain name
Last modified: Wednesday, September 15, 2004 

A name that identifies one or more IP addresses. For example, the domain name represents about a dozen IP addresses. Domain names are used in URLs to identify particular Web pages. For example, in the URL, the domain name is

Every domain name has a suffix that indicates which top level domain (TLD) it belongs to. There are only a limited number of such domains. For example:

  • gov - Government agencies
  • edu - Educational institutions
  • org - Organizations (nonprofit)
  • mil - Military
  • com - commercial business
  • net - Network organizations
  • ca - Canada
  • th - Thailand
  • Because the Internet is based on IP addresses, not domain names, every Web server requires a Domain Name System (DNS) server to translate domain names into IP addresses.

    See our list of Domain Extensions and the countries they coincide with in the Quick Reference section of Webopedia.

    Also see Registering a Domain Name in the Did You Know section of Webopedia.

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    For pages about domain name . Also check out the following links!

    Related Links

    American Association of Domain Names site 
    Home page of the American Association of Domain Names (AADN), a non-profit association of and for domain name owners.

    InterNIC's home page 
    Features information on InterNIC's directory and database services, tools and resources for the Internet community, Scout report and net-happenings publications, and domain name registration and IP network number assignment services.
    Allows users to find out if a domain name is registered or still available.

    Connected Encyclopedia's description of domain names
    Explains Internet domains and their naming conventions.

    Domain Name Registries
    Contains links to domain name registries around the world.
    Domain name registration, Web hosting, e-mail services, domain search, and SEO services.

    Internet Gold-Rush: Domain name news and information
    Provides links to domain name news and information, analysis and commentary, guides to buying and selling domain names, and over 120 links to related information.

    Internet leaves the U.S. nest
    CNN article, October, 1998, on how the National Telecommunications and Information Administration (NTIA) is considering how to mesh together several proposals for a new nonprofit corporation to oversee the Internet's growth. The article includes links to the latest developments in this area.

    Network Solutions
    Home page for Network Solutions, currently acting as the exclusive registrar of Internet domain names within the .com, .net, .edu and .org top-level domains, persuant to agreements with the National Science Foundation.

    Registration Forms from Network Solutions
    Access to forms used to register a new contact NIC handle and to modify existing contact NIC handle information.

    Yahoo!'s domain naming organizations
    Yahoo!'s directory of domain naming organizations.

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    related categories

    Domain Name System



    related terms




    Class C network



    DNS parking


    dynamic DNS




    IP address


    MX record




    root server system





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