WHOIS is a protocol which makes it possible to see the information a specific domain name has been registered with either through a command line or with the help of special web-based lookup sites. This information includes the names, address and email address of the owner, administrator, tech and billing persons as well as the registrar business the domain name has been obtained through, the creation and expiration dates. Apart from several country-code TLDs that have certain limitations, the WHOIS information of any domain address can be edited freely anytime, which is quite vital given that in accordance with the policies of the top-level Internet Corporation, ICANN, all details ought to be current and correct always. Inability to conform with these policies may lead to losing the ownership of a domain address and in some cases a domain name could even be erased from the Domain Name System and released for free registration.