Which Next.js Page Rendering Metric to Profile First?
Goal: Identify the primary bottleneck in Next.js page rendering before applying optimizations. Next.js provides a built‑in profiling mode (next build --profile / next dev --profile) that emits a .profile file consumable by the React 18 Profiler. This captures server‑side rendering time, but it does not include client‑side hydration or bundle size metrics. De
nextjs