BlueMap is a program that reads your Minecraft world files and generates not only a map, but also 3D-models of the whole surface. With the web-app you then can look at those in your browser and basically view the world as if you were ingame! Or just look at it from far away to get an overview.

Get to know your server Our open source player analytics solution works on every Minecraft server platform, giving you the tools you need to understand how your players are playing. https://www.playeranalytics.net/