Next.js

Next.js is a React framework integrating routing, rendering and server functionality. It can combine indexable public pages with wallet-connected interfaces. Decisions about server execution and browser-delivered code affect performance, data access and long-term product maintenance.

App Router uses Server Components by default for pages and layouts and supports Client Components for interaction. Pages Router remains another supported router; it should not be confused with an obsolete framework version that disappears from recent releases. Existing applications require assessment of their actual needs before changing routers.

Server Components can fetch data and prepare content without shipping all that logic to the browser. Components needing interactive state, events or browser APIs belong behind a client boundary. Client Components can participate in prerendered HTML; use client does not mean their content only appears after JavaScript loads.

Route Handlers expose HTTP endpoints and suit validated webhook reception. Server Actions handle mutations integrated with the application. Durable processes and background work require infrastructure appropriate to the deployment environment rather than being assumed to persist within a request.

A product can combine documentation, commercial pages and a dApp under one domain. Public content can be prerendered where appropriate while wallet interfaces handle signatures and account-specific queries. Private data and credentials stay on the server and should not be passed through client-visible properties.

SEO requires metadata, canonicals, language alternatives and structured data matching visible content. Framework mechanisms do not automatically create a correct indexing strategy. Each route needs useful content and coherent responses when data is absent or temporarily unavailable to the application.

Caching should reflect the data. Articles may tolerate delayed revalidation, while balances used to prepare operations need freshness checks. Rules depend on Next.js version and configuration, so assumptions from old tutorials should not be carried forward without checking the installed framework.

Next.js can run on Vercel or other compatible environments. The selected platform must support the features, caching and operational tasks used by the application. A simple interface without public content may need a different architecture. Compare actual rendering, server and maintenance requirements before choosing the framework.