The Chrome User Experience Report (also known as the Chrome UX Report, or CrUX for short) is a dataset that reflects how real-world Chrome users experience popular destinations on the web.

CrUX is the Google dataset of the[Web Vitals](https://web.dev/articles/vitals)program. All user-centric Core Web Vitals metrics are represented.

CrUX data is collected from real browsers around the world, based on certain browser options which determine[user eligibility](https://developer.chrome.com/docs/crux/methodology#user-eligibility). A set of[dimensions](https://developer.chrome.com/docs/crux/methodology/dimensions)and[metrics](https://developer.chrome.com/docs/crux/methodology/metrics)are collected which allow site owners to determine how users experience their sites.

The data collected by CrUX is available publicly through a number of[Google tools](https://developer.chrome.com/docs/crux/methodology/tools)and third-party tools and is used by Google Search to inform the[page experience ranking factor](https://developers.google.com/search/docs/advanced/experience/page-experience).

Not all origins or pages are represented in the dataset. There are separate eligibility criteria for[origins](https://developer.chrome.com/docs/crux/methodology#origin-eligibility)and[pages](https://developer.chrome.com/docs/crux/methodology#page-eligibility), primarily that they must be publicly discoverable and there must be a large enough number of visitors in order to create a statistically significant dataset.