The so-called WHOIS details of any registered domain contain details about the registrar company, the registration and expiration dates, and also the names, telephone 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 obtain all this info through a command line or via one of the numerous Internet websites that provide WHOIS lookup services. All contact details must be up-to-date as per 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 could be its removal or losing its ownership. Several country-specific internet domain extensions have certain limitations for the editing of their WHOIS information, but in the standard situation any detail can be modified freely and at any moment. Such an adjustment will appear on lookup sites within 1 day.