whois https://groups.google.com/g/group-tug
Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
https://groups.google.com/g/group-tug
checking....https://groups.google.com/g/group-tug
$
whois
https://groups.google.com/g/group-tug
No whois server is known for this kind of object.