Whitelist is on
Whether the whitelist is on, so only listed players and operators can join.
A Minecraft element (a check) in Server & admin. Needs the Basic plan or higher to go live; building and testing are free.
Example
When a player uses /status → If Whitelist is on → Answer: the server is private.
Also called
whitelist on, is whitelist enabled, private server, invite only
Works as a data pack?
No. This one needs the Elementium plugin on a Paper server.