WHOIS is a protocol which makes it easy to view the details a particular 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, admin, technical and billing persons as well as the registrar company the Internet domain has been acquired through, the creation and expiration dates. Apart from a number of country-code TLDs that have certain limitations, the WHOIS information of any domain name can be changed freely at any time, which is quite important considering that in accordance with the policies of the top-level Internet Corporation, ICANN, all details ought to be current and correct always. Inability to comply with these policies could lead to losing the ownership of a domain name and in many cases a domain name might even be deleted from the Domain Name System and released for free registration.