whois https://meta.trac.wordpress.org/ticket/4820/

Domain:
Turn off cache
Try for webbased whois (don't expect it to work yet)
https://meta.trac.wordpress.org/ticket/4820/
checking....https://meta.trac.wordpress.org/ticket/4820/
   $ whois https://meta.trac.wordpress.org/ticket/4820/
No whois server is known for this kind of object.