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