WHOIS is a protocol which makes it an easy task to see the information a specific domain has been registered with either through a command line or using special web-based lookup sites. This information includes the names, address and email address of the owner, admin, technical and billing persons along with the registrar company the domain has been obtained through, the creation and expiration dates. Apart from a number of country-code TLDs that have certain limitations, the WHOIS information of any Internet domain can be changed freely whenever you want, which is quite important given that in accordance with the policies of the top-level Internet Corporation, ICANN, all details have to be current and legitimate at all times. Failure to comply with these policies could lead to losing the ownership of a domain and in some cases a domain address could even be removed from the Domain Name System and released for free registration.