Since private servers won't be cleared at launch, how can you tell whether or not you are on an official server or not?

I’m on XB1 currently and the server name does not say “Official…” Will all official servers have that naming convention for both XB1 and PS4? How can you tell which type of server you are on?

On the server selection screen, is there a column for “Official” like on PC? The checkbox will be the telltale there:

EDIT: My guess is they will also all feature the same syntax in their names, once the game is released. If you sort by name then, in theory, all official servers would be in the same block unless they call them names like “Thoth-Amon”, “Dagoth”, etc

or hit ESC in game and the name of the server is at the bottom