whois pinboard.opera.com/view/fd7fb9ab-4577-4b43-83a7-ffab67a55a95/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
pinboard.opera.com/view/fd7fb9ab-4577-4b43-83a7-ffab67a55a95/
checking....pinboard.opera.com/view/fd7fb9ab-4577-4b43-83a7-ffab67a55a95/
   $ whois pinboard.opera.com/view/fd7fb9ab-4577-4b43-83a7-ffab67a55a95/
No whois server is known for this kind of object.