Variable: erc-default-server
erc-default-server is a variable defined in erc.el.gz.
Value
"irc.libera.chat"
Documentation
IRC server to use if it cannot be detected otherwise.
Source Code
;; Defined in /usr/src/emacs/lisp/erc/erc.el.gz
;; activation
(defconst erc-default-server "irc.libera.chat"
"IRC server to use if it cannot be detected otherwise.")