The so-called WHOIS details of every single registered domain name contain info about the registrar firm, the registration and expiration dates, in addition to the names, phone number, postal address and email address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that allows you to get all of this information either through a command line or via one of the numerous websites which provide WHOIS lookup services. All contact 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 information is not correct, the internet domain could be reported and the result may be its removal or losing its ownership. A number of country-specific domain address extensions have specific limitations regarding the modification of their WHOIS info, but in the typical case any detail can be modified openly and at any time. Such an adjustment will appear on lookup sites within twenty four hours.