Each active domain name is registered on the name of a person and during the registration procedure a lot of details are submitted - the owner’s names, address, e-mail, contact number, etc. These details in addition to the registrar company name and the registration/expiration dates is known as WHOIS of the domain address and in accordance with the policies of Internet Corporation for Assigned Names and Numbers (ICANN) it has to be current and legitimate. If an Internet domain has invalid WHOIS details, it can be reported and if the details are not fixed, the domain may be deleted or the registrar company may take over its ownership. By default, the WHOIS details are public and could be seen on many lookup Internet sites, or for a small number of country-code extensions - on the sites of the respective Registry businesses. All companies which offer registration services are obliged to provide an uncomplicated way for their clients to access and change the WHOIS details of any domain name they own as much as the specific TLD allows it.