The so-called WHOIS details of every registered domain name contain info about the registrar company, the registration and expiration dates, and also the names, contact number, postal address and e-mail address of the owner, the administrator and the tech/billing person. WHOIS is a specific protocol that allows you to retrieve all this information through a command line or using one of the many Internet websites that offer WHOIS lookup services. All information ought to be up-to-date in line with the policies of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the details are not accurate, the domain address might be reported and the result might be its deletion or losing its ownership. A number of country-specific internet domain extensions have specific limitations concerning the editing of their WHOIS info, but in the general scenario any detail can be modified freely and at any time. Such an adjustment will show up on lookup websites within 1 day.