CrUX methodology

Technical documentation on CrUX eligibility, metrics, dimensions and accessing the data.

CrUX on BigQuery

Learn how the CrUX dataset on BigQuery is structured.

CrUX API

Learn how to construct requests to and parse responses from the CrUX API.

About CrUX

Introduction to the CrUX dataset.

Release notes

Details on the latest changes to the CrUX dataset.

We serve cookies on this site to analyze traffic, remember your preferences, and optimize your experience.