INITIAL LOAD PERFORMANCE FOR REACT DEVELOPERS: INVESTIGATIVE DEEP DIVE

Summary from the TLDR Web Dev newsletter

The key metrics of initial load performance in React apps are Time To First Byte (TTFB), First Contentful Paint (FCP), and Largest Contentful Paint (LCP), components of Core Web Vitals. They can be measured using Chrome DevTools' Performance and Lighthouse panels. This article demonstrates how to analyze performance using a provided study project, simulating various network conditions (slow servers, different bandwidths, and high latency) to find performance bottlenecks.