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Node.jsWhy Next.js
Next.js is a React framework that adds routing, server rendering, static generation, image optimisation and API routes. It lets one codebase deliver static marketing pages, dynamic dashboards and API endpoints, each rendered in the most efficient way.
Its App Router and React Server Components reduce the JavaScript sent to the browser, improving load times and Core Web Vitals — which matters for both user experience and search rankings.
When Next.js is the right choice
| Details | |
|---|---|
| Great fit | Marketing sites with SEO goals, headless CMS and commerce sites, SaaS front ends, content platforms |
| Consider alternatives | Simple internal tools where a single-page app with Vite is lighter, or sites editors want to manage fully in WordPress |
What we build with Next.js
Marketing & content sites
Static and server-rendered pages with a headless CMS.
Headless commerce
Custom storefronts on Shopify and other platforms.
SaaS front ends
Authenticated dashboards with server components and streaming.
Migrations
From Create React App, Gatsby or older Next.js Pages Router.
Our Next.js toolkit
Rendering strategies explained
| Strategy | When to use |
|---|---|
| Static generation | Pages that rarely change: marketing, docs, blog |
| Incremental regeneration | Large catalogues updated periodically |
| Server rendering | Personalised or frequently changing pages |
| Client rendering | Highly interactive parts of authenticated apps |
A single Next.js app often mixes all four. Choosing the right strategy per route is one of the biggest levers for performance and hosting cost.
Choosing the right rendering strategy per page
Much of Next.js’s value comes from rendering each route in the most efficient way, and choosing badly is the most common cause of slow or expensive Next.js sites.
| Strategy | How it works | Use it for |
|---|---|---|
| Static generation | HTML built at deploy time | Marketing pages, docs, blog posts |
| Incremental revalidation | Static pages refreshed on a schedule or on demand | Product catalogues, CMS content that changes daily |
| Dynamic server rendering | HTML rendered per request on the server | Personalised pages, search results, account areas |
| Client rendering | Data fetched in the browser after load | Highly interactive dashboards behind login |
Hosting options and their trade-offs
Vercel offers the most seamless Next.js experience, with preview deployments, edge caching and image optimisation configured automatically. It is an excellent default for most teams, but costs can rise with heavy traffic or server rendering. Next.js also runs well on AWS (via OpenNext or containers), Google Cloud Run, Azure and Netlify, or as a standalone Node.js server in Docker. We help you choose based on traffic patterns, compliance requirements and existing cloud commitments, and we keep the application portable so changing host later is not a rewrite.
Common Next.js pitfalls we avoid
- Marking whole page trees as client components, which throws away the benefits of server components
- Unclear caching rules that show users stale data — we make caching and revalidation explicit per route
- Large third-party scripts loaded on every page; we load them only where needed and after interaction
- Secrets leaking into client bundles through misnamed environment variables
- Migrating from the Pages Router to the App Router in one big bang — we move route by route
SEO and Core Web Vitals checklist
- Metadata API used for unique titles, descriptions and canonical URLs on every route.
- Dynamic sitemap and robots files generated from the CMS or database.
- Structured data (JSON-LD) for products, articles, FAQs and organisation details.
- next/image with correct sizes to avoid layout shift and oversized downloads.
- next/font to self-host fonts and prevent flashes of invisible text.
- Real-user monitoring of LCP, INP and CLS so regressions are caught after deployment, not months later.
Search visibility depends on content and links as much as on code, but a technically sound Next.js site removes the obstacles that stop good content from ranking.
App Router vs Pages Router
| Pages Router | App Router | |
|---|---|---|
| Status | Supported, mature | Recommended for new projects |
| Data fetching | getServerSideProps / getStaticProps | Async server components, fetch caching, Server Actions |
| Layouts | Custom _app and wrappers | Nested layouts with persistent state |
| JavaScript sent to browser | Whole page components | Only client components |
| Learning curve | Lower for existing React teams | Higher — new mental model of server and client boundaries |
Existing Pages Router apps do not need an urgent rewrite. Both routers can run in the same project, so we move routes gradually — usually starting with new features or the highest-traffic marketing pages.
Caching: the part teams most often get wrong
Next.js caches at several layers: fetched data, rendered routes, the client-side router and any CDN in front. When caching is misunderstood, users see stale prices or, worse, another user’s personalised content. We make caching explicit for every route:
- Mark personalised or authenticated routes as dynamic so they are never shared between users
- Set revalidation times that match how often content really changes
- Use tag-based revalidation so a CMS publish refreshes exactly the affected pages
- Document cache behaviour per route for future developers
- Test with two different users to confirm nothing leaks between sessions
A typical Next.js project
-
Discovery and content model1–2 weeks
Agree pages, templates, CMS structure, SEO requirements and integrations.
-
Design system and templates2–4 weeks
Build reusable components and page templates with accessibility built in.
-
Integrations2–6 weeks
Connect the CMS, commerce, search, forms, analytics and authentication.
-
Performance and SEO pass1 week
Core Web Vitals, metadata, sitemaps, redirects from the old site and structured data.
-
Launch
Staged rollout, redirect monitoring and search console checks after go-live.
Durations are typical for a marketing site or SaaS front end; larger platforms extend the integration phase.
Testing and observability
We test components with Vitest and Testing Library, run Playwright against preview deployments for every pull request and track real-user performance after launch. Server errors, slow routes and failed Server Actions are reported to an error-tracking service so problems are found before customers report them.
Signs your Next.js app needs attention
- Large JavaScript bundles because most components are marked “use client”
- Slow server responses from un-cached data fetching on every request
- Stale content after CMS updates
- Several major versions behind the current Next.js release
- Build times that slow every deployment
- Inconsistent metadata and missing canonical tags across pages
Measuring a Next.js project’s success
- Core Web Vitals — Largest Contentful Paint, Interaction to Next Paint and Cumulative Layout Shift — measured from real users, not only lab tests
- Organic search impressions and indexed pages after launch or migration
- Conversion rates on key templates such as product and pricing pages
- Build and deployment times, so releases stay quick as the site grows
- Editor publishing time when a headless CMS is involved
We agree these measures before the project starts, so improvements are visible and decisions about further work rest on evidence.
When Next.js is more than you need
For a small brochure site that editors update rarely, a static site generator or a well-built WordPress theme may be simpler and cheaper to run. For an internal dashboard behind a login, a Vite single-page app avoids server infrastructure entirely. We recommend Next.js when its rendering options, SEO strengths or full-stack features genuinely pay for the extra complexity.
Work with us
Part of our frontend technologies. See also React development and headless websites.
This page is part of Frontend Development Services — see the full overview for related services, approach and pricing.