What is the whois server for .pub?
By default, whois server for .pub TLD is whois.unitedtld.com. This can be used to fetch the .pub domain/website whois information. Extension .pub sponsoring organisation is United TLD Holdco Ltd. and its registered on 20-02-2014.
Sponsoring Organisation Details
United TLD Holdco Ltd..
One Clarendon Row.
Dublin 2, Co. Dublin.
Ireland.
Usage
whois -h <whois server> <domain name>
For example
whois -h whois.unitedtld.com hiox.pub