.arpa : A top-level domain name used for ArpaNet sites.
.com : Pronounced “dot com.” A top-level domain name used for commercial Internet sites.
.edu : A top-level domain name used for educational sites .
.firm : An ending of an address for an Internet site for a business.
.gov : A top-level domain name used for a U.S. government site on the Internet.
.int : A top-level domain name used for international institutions.
.mil : A top-level domain name for a U.S. military site on the Internet.
.mobi : A top-level domain name for a sites made for mobile phones.
.nato : A top-level domain name used for NATO sites.
.net : A top-level domain name used for Internet administrative sites.
.nom : An ending of an address for a personal site on the Internet.
.org : A top-level domain name for organizational Internet sites.
.store : An ending of an address for an Internet site that is for a retail business.
.web : An ending of an address for an Internet site that is about the World Wide Web.
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