whois community.mozilla.org/en/events/problems-solvings/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
community.mozilla.org/en/events/problems-solvings/
checking....community.mozilla.org/en/events/problems-solvings/
   $ whois community.mozilla.org/en/events/problems-solvings/
No whois server is known for this kind of object.