The so-called WHOIS details of any registered domain name include info about the registrar company, the registration and expiration dates, as well as the names, contact 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 this information through a command line or via one of the many Internet websites that offer WHOIS lookup services. All details should be up-to-date as per the rules of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the info is not correct, the domain might be reported and the result might be its removal or losing its ownership. Several country-specific internet domain extensions have certain limitations concerning the editing of their WHOIS information, but in the standard scenario any detail can be modified easily and at any time. Such a modification will show up on lookup Internet sites within twenty four hours.