How Benchmarks Help Identify Performance Bottlenecks

Website performance benchmarks act as diagnostics, highlighting metrics like Time to First Byte (TTFB), First Contentful Paint (FCP), Largest Contentful Paint (LCP), and Cumulative Layout Shift (CLS). Analyzing these reveals slow-loading scripts, bloated images, inefficient server responses, and unoptimized code. For example, a high LCP might point to render-blocking resources, helping teams focus their efforts precisely where improvements are needed.