* [Install Dependencies](install-dependencies.md): How to install dependencies for different OS.
* [Health Check](health-check.md): Enable health check on the upstream node, and will automatically filter unhealthy nodes during load balancing to ensure system stability.
* [prometheus](plugins/prometheus.md): Expose metrics related to APISIX and proxied upstream services in Prometheus exposition format, which can be scraped by a Prometheus Server.
* [OpenTracing](plugins/zipkin.md): Supports Zikpin and Apache SkyWalking.