The so-called WHOIS details of every registered domain name include info about the registrar firm, the registration and expiration dates, along with the names, contact number, postal address and email address of the owner, the admin and the tech/billing person. WHOIS is a specific protocol that lets you retrieve all this info either through a command line or through one of the numerous websites that provide WHOIS lookup services. All info must be up-to-date as per the policies of ICANN, the Internet Corporation for Assigned Names and Numbers. If some of the details are not accurate, the internet domain could be reported and the result might be its deletion or losing its ownership. Several country-specific domain address extensions have certain limitations regarding the modification of their WHOIS information, but in the general scenario any detail can be edited freely and at any moment. Such a change will appear on lookup Internet sites within 24 hours.