Active Whois Browser

ActiveWhois is a really simple and fast application that will allow you to obtain all the info related to a specific domain or IP. After just a couple of seconds of scanning, the program will display country, e-mail, mailing address and phone number of the owners of the scanned domains, as long as that information isn't protected.

ActiveWhois will allow you to investigate any website, even international domains like .IT, .DE or .TWM, and locate where the site is hosted.

And not only does it offer you all the typical information you'd get from any Whois server, but it also checks the availability of the associated server, resolves aliases and analyzes response time. In addition, you will be able to save information about multiple domains in your hard drive so you can check it offline at any given moment.