Web Vitals

Performance Testing

Real User Monitoring Implementation: Capturing Web Vitals from Actual Users

Synthetic monitoring (Lighthouse, Playwright) tells you how your app performs in a controlled environment. Real User Monitoring (RUM) tells you how it actually performs for your users—on their devices, their networks, their browsers, with their extensions installed and their CPU under load from 40 other tabs. These are different

Performance Testing

Core Web Vitals in CI: Measuring LCP, CLS, and INP Automatically on Every Build

Core Web Vitals are Google's user-experience metrics that directly impact search rankings. Most teams check them manually in PageSpeed Insights—once a quarter, usually after someone notices traffic dropped. That's reactive and slow. This guide shows you how to measure LCP, CLS, and INP automatically