WHOIS is a protocol which makes it an easy task to see the details a specific domain has been registered with through a command line or by using special web-based lookup websites. This info includes the names, address and e-mail address of the owner, admin, tech and billing persons along with the registrar business the domain has been obtained through, the creation and expiration dates. Aside from a number of country-code TLDs that have specific limitations, the WHOIS info of any Internet domain can be changed freely anytime, which is quite vital provided that based on the policies of the top-level Internet Corporation, ICANN, all details must be current and correct all of the time. Failing to conform with these policies may result in losing the ownership of an Internet domain and in some cases a domain name could even be deleted from the Domain Name System and released for free registration.