- Make sure the server has Slapper by jojoe77777 installed
- Drop phar from https://poggit.pmmp.io/ci/jasonwynn10/CrossOnlineCount/~ into plugins folder
- Restart server
- Make sure that the server you are querying has query enabled and is online
- Make sure the server you are querying is port forwarded if it is not LAN
- Create a slapper with the first line of its nametag as the ip:port