2009Scape Official Forums

Where does 2009scape fetch the highscore from? I'm running my own build, but Highscores doesn't seem to work or get fetched.

hiscores are only for the live multiplayer server

If you want to run hiscores on your own server, you'll need a service like this: https://github.com/2009scape/api.2009scape.org

(Note this wasn't developed with the intention of being used alongside the local server, so you may run into issues)