WhoisThisDomain offers you the registration information for any domain, whether it be generic or territorial.
The program allows you to include several domains separated by commas all in the same search. After just a few seconds, on the bottom of the screen a document will display all the registration data.
Furthermore, all this information can be exported to a text document .TXT or can be saved as HTML.
WhoisThisDomain is completely free and doesn’t require installation.