WHOIS is a protocol which makes it simple to see the information a specific domain name has been registered with through a command line or by using special web-based lookup sites. This info includes the names, address and e-mail address of the owner, admin, technical and billing persons as well as the registrar company the domain name has been acquired through, the creation and expiration dates. Aside from several country-code TLDs that have specific limitations, the WHOIS info of any domain can be edited freely anytime, which is quite necessary provided that based on the policies of the top-level Internet Corporation, ICANN, all details must be current and correct always. Failure to comply with these policies may lead to losing the ownership of a domain address and in some cases a domain name may even be removed from the Domain Name System and released for free registration.