# Observatory

Observatory uses synthetic tests and real user data from browsers to assess website performance and recommend optimizations.

> Links below point directly to Markdown versions of each page. Any page can also be retrieved as Markdown by sending an `Accept: text/markdown` header to the page's URL without the `index.md` suffix (for example, `curl -H "Accept: text/markdown" https://developers.cloudflare.com/speed/observatory/`).
>
> For other Cloudflare products, see the [Cloudflare documentation directory](https://developers.cloudflare.com/llms.txt).

## Overview

- [Observatory (beta)](https://developers.cloudflare.com/speed/observatory/index.md): Test and monitor your website performance with Cloudflare Observatory.

## Observatory dashboard

- [Observatory dashboard](https://developers.cloudflare.com/speed/observatory/dashboard/index.md): View speed test history and performance trends in the Observatory dashboard.

## Run test

- [Run test](https://developers.cloudflare.com/speed/observatory/run-speed-test/index.md): Learn how to use Cloudflare's Observatory to assess the performance of your website.

## Understand test results

- [Understand test results](https://developers.cloudflare.com/speed/observatory/test-results/index.md): Interpret Lighthouse scores and Core Web Vitals from Observatory tests.

## RUM beacon for Web Analytics

- [RUM beacon for Web Analytics](https://developers.cloudflare.com/speed/observatory/rum-beacon/index.md): Collect real user performance metrics with the RUM beacon.

## FAQ

- [FAQ](https://developers.cloudflare.com/speed/observatory/faq/index.md): Find answers to common questions about Cloudflare Observatory.