Whois service lets users get domain information from any registry. <br/><h4> Servername</h4> is the whois server to be used.<br/>Some commonly queried whois servers are: <br/><ul><li>whois.networksolutions.com</li><li>whois.35.com</li><li>whois.tucows.com</li></ul> <br/><br/><h4> Port </h4>is always 43 for whois servers. <br/><br/><h4>Domain </h4><br/>is the domain name that you want to query.