Diagnostic Port 43 Whois Tool

All our domain name software tools include a diagnostic port 43 whois lookup tool available from the Config Tab > Popup Whois ribbon button (Tools > Popup Whois Tool menu in earlier versions). You can use this to quickly lookup a domain name or check if port 43 connections are working properly.

To check a domain name type in the whois server and the domain name into the appropriate boxes and then click 'Go'.

In some cases you can use the whois tool to determine the valid whois server for a country or top level domain by querying whois.iana.org. For example to find the whois server for query whois.iana.org for it. Now look through the whois output and you will find the whois server listed as

Whois Server (port 43): whois.nic.it