Top Level Domain is a Hierarchical scheme for indicating logical and sometimes geographical location of a web site. They have now been extended to indicate types of site such as .biz for businesses & .tv for entertainment sites. Common domains include; .edu (education), .gov (government agency), .net (network related), .com (commercial), .org (non-profit organisations). Country – specific Domains include; uk (United Kingdom), au (Australia), jp (Japan), nz (New Zealand), etc.
