The so-called WHOIS details of every registered domain contain information about the registrar firm, the registration and expiration dates, in addition to the names, contact number, postal address and email address of the owner, the admin and the tech/billing person. WHOIS is a special protocol that lets you get all of this info either through a command line or by using one of the many sites that offer WHOIS lookup services. All info must be up-to-date as per the regulations of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the details are not accurate, the domain can be reported and the result might be its removal or losing its ownership. A number of country-specific internet domain extensions have specific limitations for the editing of their WHOIS info, but in the standard situation any detail can be modified freely and at any moment. Such an adjustment will show up on lookup Internet sites within twenty four hours.