whois https://www.17cats.com/newblog/categories/%E4%B8%93%E8%BE%91/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
https://www.17cats.com/newblog/categories/%E4%B8%93%E8%BE%91/
checking....https://www.17cats.com/newblog/categories/%E4%B8%93%E8%BE%91/
   $ whois https://www.17cats.com/newblog/categories/%E4%B8%93%E8%BE%91/
No whois server is known for this kind of object.