Domain name is the address that users will enter in their web browser (like Internet Explorer or Netscape) to access your web site. ".com" extension (called TLD, top-level domains) is most common for commercial web sites. Non-profit organizations might prefer using .org, universities usually use .edu, government sites use .gov. ICANN (organization responsible for such matters) approved new TLDs in November 2000, including .biz, .info, .name, .museum, .coop, .areo, and .pro. Rules for registering domains with those TLDs vary. Other domains like .tv are also available - most commonly they were originally assigned to small countries or provinces and subsequently sold to companies that offer them to everybody.
www.cnregistar.com.cn