The so-called WHOIS details of every registered domain contain information regarding the registrar organization, the registration and expiration dates, along with the names, telephone number, postal address and e-mail address of the owner, the admin and the tech/billing person. WHOIS is a specific protocol that lets you retrieve all this information either through a command line or via one of the numerous Internet websites that provide WHOIS lookup services. All information must be up-to-date in accordance with the regulations of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the details are not legitimate, the internet domain could be reported and the result might be its removal or losing its ownership. Several country-specific internet domain extensions have specific limitations for the modification of their WHOIS information, but in the typical situation any detail can be modified easily and at any moment. Such an adjustment will show up on lookup websites within 24 hours.