The so-called WHOIS details of each registered domain name include information about the registrar firm, the registration and expiration dates, in addition to the names, phone number, postal address and e-mail address of the owner, the administrator and the tech/billing person. WHOIS is a special protocol that enables you to retrieve this information either through a command line or by using one of the numerous websites that provide WHOIS lookup services. All contact details ought to be up-to-date in line with the rules of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not accurate, the domain address can be reported and the result might be its removal or losing its ownership. A number of country-specific domain address extensions have certain limitations concerning the editing of their WHOIS info, but in the typical situation any detail can be modified easily and at any time. Such a change will appear on lookup Internet sites within a day.