whois https://cotvn.blogspot.com

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

https://cotvn.blogspot.com
checking....https://cotvn.blogspot.com
   $ whois https://cotvn.blogspot.com (cached 31.03.25, 04:07:12)
No whois server is known for this kind of object.