whois https://activity-ptjs.xyz/archives/56/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)

https://activity-ptjs.xyz/archives/56/
checking....https://activity-ptjs.xyz/archives/56/
   $ whois https://activity-ptjs.xyz/archives/56/
No whois server is known for this kind of object.