The so-called WHOIS details of each registered domain name contain information about the registrar firm, the registration and expiration dates, along with the names, phone number, postal address and e-mail address of the owner, the admin and the tech/billing person. WHOIS is a special protocol that enables you to retrieve all this information either through a command line or through one of the numerous websites which provide WHOIS lookup services. All details should be up-to-date in line with the policies of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not legitimate, the domain address might be reported and the result may be its deletion or losing its ownership. A number of country-specific internet domain extensions have specific limitations concerning the modification of their WHOIS info, but in the standard case any detail can be edited easily and at any time. Such a modification will show up on lookup Internet sites within a day.