whois dudoser.com/user/pvchoe4/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
dudoser.com/user/pvchoe4/
checking....dudoser.com/user/pvchoe4/
   $ whois dudoser.com/user/pvchoe4/ (cached 10.07.26, 03:25:54)
No whois server is known for this kind of object.