The so-called WHOIS details of any registered domain contain info about the registrar organization, the registration and expiration dates, as well as the names, contact number, postal address and email address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that enables you to retrieve all this info through a command line or via one of the numerous Internet websites that offer WHOIS lookup services. All details should be up-to-date in accordance with the rules of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the details are not legitimate, the internet domain might be reported and the result may be its removal or losing its ownership. Some country-specific domain name extensions have certain limitations regarding the change of their WHOIS details, but in the standard scenario any detail can be changed easily and at any moment. Such a change will appear on lookup sites within 24 hours.