Whois

Whois is a simple-to-use and straightforward piece of software that retrieves domain registration information on a specific server. It comes packed with limited features, making it ideal for users with limited or no experience in software apps.
The installation operation is quick and uneventful, and does not require special attention from the user. Once it finishes, you can check out the standard window with the plain and simple layout, representing Whois' interface.
All you have to do is write a URL and click a button to get domain registration information on it, such as contact details, administrative and technical data, status, name servers, creation and expiration date, among others.
Whois has minimal impact on system resources, running on a very low amount of CPU and RAM. It has a good reaction speed and quickly loads accurate information, without causing the operating system to hang, crash or show error notifications. We have not encountered any problems in our tests.
Unfortunately, Whois does not provide buttons for copying data to the Clipboard, printing it or exporting it to file for further scrutiny. However, you can make a text selection and copy it via the global function available in the context menu. All in all, Whois delivers a simple solution to acquiring registration details on a selected URL.