whois www.tk999.edu.gr

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
www.tk999.edu.gr
checking....www.tk999.edu.gr
   $ whois www.tk999.edu.gr
This TLD has no whois server, but you can access the whois database at
https://grweb.ics.forth.gr/public/whois