Factorio Forums

TL;DR

Show the .zip map size, based on the last .zip file size the server created.

What ?

When the server saves the map, either as an autosave or for a player, have it send the .zip file size to the Factorio multiplayer server.

Why ?

This would be handy to know how complex of a map it is, because server play time isn't necessarily indicative of things like this.
It would also be helpful if you have a particularly slow connection.