WhoisThisDomain

di Nir Sofer.

This utility allows you to easily get information about a registered domain. It automatically connect to the right WHOIS server, according to the top-level domain name, and retrieve the WHOIS record of the domain.
It support both generic domains and country code domains.

Starting from version 1.20, you can create your own WHOIS servers list to override the default servers defined by WhoisThisDomain.