whois m1bar.com/user/willowoxygen8/

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

m1bar.com/user/willowoxygen8/

checking....m1bar.com/user/willowoxygen8/
$ whois m1bar.com/user/willowoxygen8/
No whois server is known for this kind of object.