The so-called WHOIS details of every registered domain include details about the registrar organization, the registration and expiration dates, in addition to the names, telephone number, postal address and e-mail address of the owner, the admin and the tech/billing person. WHOIS is a special protocol that allows you to retrieve all of this info through a command line or by using one of the many Internet websites that provide WHOIS lookup services. All contact details must 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 correct, the domain address might be reported and the result might be its removal or losing its ownership. Several country-specific domain extensions have specific limitations concerning the editing of their WHOIS details, but in the standard situation any detail can be modified freely and at any time. Such a change will appear on lookup websites within 1 day.