Every active domain is registered on the name of a person and throughout the registration process a number of details are submitted - the owner’s names, address, email, mobile phone number, etc. This information plus the registrar company name and the registration/expiration dates is referred to as WHOIS of the domain address and in agreement with the policies of Internet Corporation for Assigned Names and Numbers (ICANN) it needs to be current and correct. If a domain name has invalid WHOIS details, it could be reported and if the details aren't fixed, the domain address can be erased or the registrar company could take over its ownership. By default, the WHOIS details are public and may be seen on many lookup Internet sites, or for a smaller number of country-code extensions - on the websites of the respective Registry organizations. All companies that offer registration services are obliged to provide an effective way for their customers to access and modify the WHOIS info of any domain name they own as much as the specific TLD allows it.