whois pinboard.opera.com/view/741b5815-d913-4acb-8307-605893ae8ad2/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
pinboard.opera.com/view/741b5815-d913-4acb-8307-605893ae8ad2/
checking....pinboard.opera.com/view/741b5815-d913-4acb-8307-605893ae8ad2/
   $ whois pinboard.opera.com/view/741b5815-d913-4acb-8307-605893ae8ad2/
No whois server is known for this kind of object.