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Definition [Domain Name]

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Domain Name

Domain names are used to identify 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 webpages. 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 In the case of, the TLD is com. 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.