WHOIS is a protocol which makes it simple to view the information a specific domain has been registered with either through a command line or with the help of special web-based lookup websites. This information includes the names, address and e-mail address of the owner, administrator, tech and billing persons along with the registrar organization the Internet domain has been acquired through, the creation and expiration dates. Apart from some country-code TLDs that have certain limitations, the WHOIS details of any domain address can be changed freely at any time, which is quite necessary considering that based on the policies of the top-level Internet Corporation, ICANN, all details have to be current and valid always. Inability to comply with these policies may result in losing the ownership of a domain name and in some cases a domain could even be removed from the Domain Name System and released for free registration.