feature-sites/Metrics System
This plugin utilises Hidendra's plugin metrics system, which means that the following information is collected and sent to mcstats.org:
A unique identifier The server's version of Java Whether the server is in offline or online mode The plugin's version The server's version The OS version/name and architecture The core count for the CPU The number of players online The Metrics version
Opting out of this service can be done by editing plugins/Plugin Metrics/config.yml and changing opt-out to true.