The so-called WHOIS details of every registered domain include info about the registrar firm, the registration and expiration dates, and also the names, telephone number, postal address and email address of the owner, the admin and the tech/billing person. WHOIS is a special protocol that allows you to obtain all this info either through a command line or through one of the numerous Internet websites that provide WHOIS lookup services. All details ought to be up-to-date in accordance with the policies of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the details are not legitimate, the internet domain can be reported and the result might be its removal or losing its ownership. A few country-specific domain name extensions have certain limitations in connection with the change of their WHOIS details, but in the typical case any detail can be modified easily and at any moment. Such a modification will appear on lookup websites within 24 hours.