> **For AI agents:** The documentation index is at [https://docs.digitalocean.com/llms.txt](https://docs.digitalocean.com/llms.txt). Markdown versions of pages use the same URL with `index.html.md` in place of the HTML page (for example, append `index.html.md` to the directory path instead of opening the HTML document).

# Monitoring Concepts

Generated on 30 Mar 2026

DigitalOcean Monitoring is a free, opt-in service that lets you track Droplet resource usage in real time, visualize performance metrics, and receive alerts via email or Slack to proactively manage your infrastructure’s health.

[Monitoring Metrics](https://docs.digitalocean.com/products/monitoring/concepts/metrics/index.html.md): Understand the key metrics (CPU, memory, disk, and bandwidth) used by Monitoring to track your Droplet’s performance and overall health.