Tech article
Next.js Performance Guide
This guide covers practical ways to improve performance in Next.js projects, including Core Web Vitals, image strategy, font loading, metadata, rendering choices and caching.
Why performance matters in Next.js
Performance impacts user experience, crawlability, conversion and organic visibility. Fast pages are easier to use and easier to rank.
Core Web Vitals to watch
Focus on LCP, CLS and INP. Those metrics usually reveal whether your layout, assets and rendering strategy are helping or hurting the final experience.
Image optimization
Use properly sized images, modern formats, stable dimensions and a clear strategy for above-the-fold media. Avoid shipping oversized assets.
Font loading
Reduce unnecessary font variants, preload only what matters and avoid layout shifts caused by poor font strategy.
Server vs client components
Keep as much as possible on the server side and move to client components only when interactivity really requires it.
Metadata and SEO impact
Good metadata improves discoverability, shareability and semantic clarity for search engines and LLM-based systems.
Caching and rendering strategy
Choose the right balance between static generation, dynamic rendering and caching based on the content type and update frequency.