title: Prometheus Metrics ## What is Prometheus? [Prometheus](https://prometheus.io) is an "open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach". Prometheus Metrics can be accessed at [/metrics](/metrics), or you can view them on the Grafana instance below.
## Metrics * `contentdb_packages` - Total packages (counter). * `contentdb_users` - Number of registered users (counter). * `contentdb_downloads` - Total downloads (counter). * `contentdb_score` - Total package score (gauge).