Each and every active domain is registered on the name of a particular person and during the registration procedure many details are submitted - the owner’s names, address, email, mobile phone number, and many others. These details plus the registrar company name and the registration/expiration dates is addressed as WHOIS of the domain address and in compliance with the policies of Internet Corporation for Assigned Names and Numbers (ICANN) it ought to be current and correct. If a domain address has invalid WHOIS details, it can be reported and if the details aren't fixed, the Internet domain could be erased or the registrar company could take over its ownership. By default, the WHOIS details are public and can be seen on various lookup Internet sites, or for a limited number of country-code extensions - on the sites of the respective Registry organizations. All companies which provide registration services are required to provide a simple way for their customers to access and modify the WHOIS information of any domain they own as much as the particular TLD allows it.