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