Web Performance Engineering Guides

Google’s Core Web Vitals evolved: Interaction to Next Paint (INP) replaced FID, and Largest Contentful Paint (LCP) penalties punish slow hydration and bloated JavaScript bundles. Here is the deep technical architecture for Next.js App Router: selective hydration, React Server Components (RSC), CSS payload pruning, and Edge CDN cache key strategies to achieve sub-second LCP and sub-100ms INP under high traffic.

A deep systems engineering guide to building enterprise Next.js App Router applications for Googlebot: streaming XML sitemap segmentation, dynamic tag-based ISR revalidation, eliminating soft 404s, and solving hybrid SSR/RSC hydration latency.