React Framework

What is Next.js

The React meta-framework that adds routing, server rendering and full-stack features on top of React.

Official site

Overview

Next.js is a production framework built on React by Vercel. It takes React — which is only a UI library — and adds the parts you always end up needing: file-based routing, server-side rendering and static generation, an API/route-handler layer, image optimisation and caching.

Its App Router and React Server Components model let you render most of a page on the server and ship less JavaScript to the browser, which is good for both performance and SEO. For content-heavy or e-commerce sites in the React world, it is often the default answer.

What it is

Next.js is an opinionated, full-stack React framework. It handles rendering strategy per route (static, server-rendered, or client), gives you server components, and can serve as a backend-for-frontend with its own route handlers.

  • File-based App Router with React Server Components
  • Static generation, SSR and incremental revalidation
  • Built-in image, font and script optimisation

When we reach for it

When a client is committed to React and wants strong SEO and performance without wiring SSR by hand, Next.js is the pragmatic pick. It removes a pile of infrastructure decisions and pairs cleanly with Vercel or self-hosted Node deployments.

Trade-offs

The rendering model is powerful but genuinely complex — server vs client components, caching layers and revalidation trip up teams. You also lean toward Vercel-shaped hosting for the smoothest path. For an Angular shop like ours, we use it when the React ecosystem is the requirement rather than the default.

Why it matters

Next.js is the leading React meta-framework, maintained by Vercel, that turns React from a UI library into a full framework for production websites and applications. It matters because it solves out of the box the things raw React leaves to you — server-side rendering, static generation, routing, image and font optimisation, API routes — and it makes React SEO-friendly by rendering HTML on the server or at build time rather than only in the browser. It has become the default choice for building fast, SEO-capable React sites, from marketing pages to complex applications.

  • The leading React meta-framework, maintained by Vercel
  • Adds SSR, static generation, routing, optimisation and API routes to React
  • Makes React SEO-friendly by rendering HTML on the server or at build time

Key characteristics

Next.js provides hybrid rendering — you can statically generate pages that rarely change, server-render dynamic pages per request, and stream HTML — chosen per route, which lets you optimise each page for its needs. It includes file-based routing, automatic code-splitting, built-in image, font and script optimisation, and API routes for backend logic. Recent versions center on the App Router with React Server Components, moving more rendering work to the server for smaller client bundles. The result is a framework designed to produce fast, indexable sites with good Core Web Vitals by default.

  • Hybrid rendering: static, server-rendered or streamed, chosen per route
  • File-based routing, automatic code-splitting, built-in asset optimisation
  • API routes for backend logic within the same project
  • App Router + React Server Components shift work to the server

When to use it

Next.js is a strong default for building React-based websites and applications that need to rank and load fast — marketing sites, e-commerce, content sites, SaaS front-ends — precisely because it delivers server or static rendering and performance optimisations that make React SEO-viable. It may be more than a tiny static site strictly needs (a simpler static generator could suffice), and its evolving App Router adds a learning curve. But for most serious React projects where SEO and performance matter, it is the go-to, giving you the flexibility of React with the structure and rendering a production, indexable site requires.

  • A strong default for SEO-and-performance-critical React sites
  • Marketing, e-commerce, content and SaaS front-ends all fit well
  • Possibly more than a tiny static site needs
  • The go-to when you want React plus production rendering and structure

Common questions

Next.js — questions

Straight answers on how this fits your marketing and build.

What is the difference between React and Next.js?
React is the UI library; Next.js is a framework built on top of it that adds routing, server-side rendering, static generation and a backend layer. You use React to build components and Next.js to ship a full app.
Is Next.js good for SEO?
Yes. Its server rendering and static generation deliver real HTML to crawlers, and its App Router lets you control rendering per route. It is one of the strongest SEO options in the React ecosystem.
Why use Next.js instead of plain React?
Because plain React is a client-side UI library that leaves rendering, routing and optimisation to you — and client-only rendering can hurt SEO. Next.js adds server-side and static rendering (so crawlers get real HTML), routing, code-splitting and asset optimisation out of the box, turning React into a framework that produces fast, indexable production sites.
Is Next.js good for SEO?
Yes — it is one of the main reasons to choose it. Next.js renders pages on the server or at build time, so search crawlers receive fully-rendered HTML, and it includes performance optimisations (image, font, script handling, code-splitting) that help Core Web Vitals. Both address the core SEO weaknesses of client-only React.

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