whois dudoser.com/user/motionstore28/
Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
dudoser.com/user/motionstore28/
checking....dudoser.com/user/motionstore28/
$
whois
dudoser.com/user/motionstore28/
No whois server is known for this kind of object.