Every active domain name is registered on the name of a particular person and through the registration process a lot of details are introduced - the owner’s names, address, email, cell phone number, etc. This information combined with the registrar company name and the registration/expiration dates is referred to as WHOIS of the Internet domain and in accordance with the policies of Internet Corporation for Assigned Names and Numbers (ICANN) it ought to be current and accurate. If a domain name has invalid WHOIS details, it may be reported and if the details aren't fixed, the domain address can be deleted or the registrar company may take over its ownership. By default, the WHOIS details are public and may be seen on many lookup Internet sites, or for a small number of country-code extensions - on the sites of the respective Registry companies. All companies that offer registration services are obligated to provide an effective way for their clients to access and change the WHOIS details of any domain address they own as much as the particular TLD allows it.