whois www.www.youtube.com/channel/UCic37XSk_ljPMwo7JhKJ8dA

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
www.www.youtube.com/channel/UCic37XSk_ljPMwo7JhKJ8dA
checking....www.www.youtube.com/channel/UCic37XSk_ljPMwo7JhKJ8dA
   $ whois www.www.youtube.com/channel/UCic37XSk_ljPMwo7JhKJ8dA
No whois server is known for this kind of object.