whois pinboard.opera.com/view/9f07f07f-7793-4683-a1b4-0ba4d9b19565/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
pinboard.opera.com/view/9f07f07f-7793-4683-a1b4-0ba4d9b19565/
checking....pinboard.opera.com/view/9f07f07f-7793-4683-a1b4-0ba4d9b19565/
   $ whois pinboard.opera.com/view/9f07f07f-7793-4683-a1b4-0ba4d9b19565/
No whois server is known for this kind of object.