whois forexmob.ru/user/silktaxi1/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)

forexmob.ru/user/silktaxi1/

checking....forexmob.ru/user/silktaxi1/
$ whois forexmob.ru/user/silktaxi1/
No whois server is known for this kind of object.