For example: mydomain-name.tk

WHOIS Lookup information for this domain

B.TJ

The domain you requested is not registered at Freenom. To help you further we have requested the domain's public WHOIS information. This information is displayed in the textbox below. If you wish to know more about Freenom's services, please continue to go to: http://www.freenom.com

Output WHOIS Server:

The domain you requested is not known in Freenoms database.

This TLD has no whois server, but you can access the whois database at
http://www.nic.tj/whois.html