whois pinboard.opera.com/view/494550e3-0fba-48f3-8953-d9f9bfc553ae

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
pinboard.opera.com/view/494550e3-0fba-48f3-8953-d9f9bfc553ae
checking....pinboard.opera.com/view/494550e3-0fba-48f3-8953-d9f9bfc553ae
   $ whois pinboard.opera.com/view/494550e3-0fba-48f3-8953-d9f9bfc553ae
No whois server is known for this kind of object.