Inside the Web Browser’s Performance API

This post introduces Cloudflare's Browser Insights product, which leverages the browser's native Performance API (specifically Navigation Timing, Resource Timing, and Paint Timing) to provide real-user monitoring. It explains how these browser-level metrics are collected and presented in the Cloudflare dashboard, allowing users to diagnose performance bottlenecks from the end-user's perspective. It also outlines future plans to incorporate more detailed metrics and error tracking.