The so-called WHOIS details of every registered domain name include information about the registrar firm, the registration and expiration dates, as well as the names, telephone number, postal address and email address of the owner, the admin and the tech/billing person. WHOIS is a special protocol that allows you to obtain all of this info through a command line or through one of the many websites that 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 accurate, the domain name might be reported and the result may be its deletion or losing its ownership. Several country-specific internet domain extensions have specific limitations concerning the editing of their WHOIS details, but in the general scenario any detail can be edited easily and at any time. Such a modification will show up on lookup websites within 1 day.