Variable: whois-guess-server
whois-guess-server is a customizable variable defined in
net-utils.el.gz.
Value
t
Documentation
If non-nil, try to deduce the appropriate whois server from the query.
If the query doesn't look like a domain or hostname then the
server named by whois-server-name is used.
Source Code
;; Defined in /usr/src/emacs/lisp/net/net-utils.el.gz
(defcustom whois-guess-server t
"If non-nil, try to deduce the appropriate whois server from the query.
If the query doesn't look like a domain or hostname then the
server named by `whois-server-name' is used."
:type 'boolean)