WHOIS is a protocol which makes it easy to view the information a specific domain name has been registered with either 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 along with the registrar business the domain name has been purchased through, the creation and expiration dates. Apart from several country-code TLDs that have certain limitations, the WHOIS info of any domain name can be modified freely anytime, which is quite necessary since in accordance with the policies of the top-level Internet Corporation, ICANN, all details must be current and legitimate always. Inability to comply with these policies could lead to losing the ownership of a domain and in many cases a domain address might even be erased from the Domain Name System and released for free registration.