Each and every active domain is registered on the name of a particular person and during the registration procedure a lot of details are introduced - the owner’s names, address, e-mail, contact number, and many others. This information combined with the registrar company name and the registration/expiration dates is known as WHOIS of the domain address and in agreement with the policies of Internet Corporation for Assigned Names and Numbers (ICANN) it must be current and accurate. If an Internet domain has invalid WHOIS details, it may be reported and if the details aren't corrected, the domain could be erased or the registrar company may take over its ownership. By default, the WHOIS information is public and can be seen on numerous lookup websites, or for a limited number of country-code extensions - on the Internet sites of the respective Registry businesses. All companies which offer registration services are obliged 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.