whois uthopiausma999.blogspot.com/2021/09/uthopia-usma.html

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Try for webbased whois (don't expect it to work yet)
uthopiausma999.blogspot.com/2021/09/uthopia-usma.html
checking....uthopiausma999.blogspot.com/2021/09/uthopia-usma.html
   $ whois uthopiausma999.blogspot.com/2021/09/uthopia-usma.html
No whois server is known for this kind of object.