Server Components without the hype risk
App Router and React Server Components are standard — we know streaming, Suspense and Partial Pre-Rendering from production, not from demo repos.
Next.js Agency
Next.js web appswith SEO speed
We're a Next.js agency from North Rhine-Westphalia that uses Server Components, App Router and edge rendering consistently for visibility, conversion and maintainability. From greenfield products to migrating legacy React apps, we deliver frontends that hold up in Google and AI search.
Why nextlevels as your Next.js agency?
SEO and performance by default
Core Web Vitals, structured data, sitemap generation and Lighthouse budgets are part of the delivery — not an optional phase two.
TanStack integration at eye level
We solve complex data UIs with TanStack Query, Router and Table — consistent patterns for cache, pagination and optimistic updates.
Safe deployments and observability
CI/CD with preview deployments, Sentry integration, structured logging and performance tracking — releases become predictable instead of nervous.
Our Next.js services
Greenfield products
Marketing sites, SaaS frontends and customer portals on Next.js 16 with App Router, Server Actions and TypeScript. Architecture, design system and data layer from one source.
Migration & modernisation
From Create-React-App, Gatsby or Next.js Pages Router to App Router. We plan route-by-route transitions without downtime and with measurable performance gains.
Headless commerce & CMS
Next.js as a frontend for Shopware, Strapi, Sanity, Storyblok or our own NextCMS — including ISR, webhooks and preview modes for editors.
Performance & SEO audits
Lighthouse audits, bundle analysis, render strategy and structured data. Clear recommendations with effort and expected impact.
The stack we pair with Next.js
Next.js is never alone. We combine it with the stack that fits your product: TanStack Query/Router/Table for data, Tailwind and Radix for UI, Shopware or Strapi as a backend, Vercel or our own container pipelines for deployment, Sentry and PostHog for observability.
Frequently asked Next.js agency questions
What is Next.js best suited for today?
Next.js is especially suited for SEO-driven marketing sites, content-heavy platforms, customer portals with mixed public/auth areas and headless commerce frontends. The combination of React Server Components, App Router and edge rendering reduces JavaScript on the client and delivers measurably better Core Web Vitals than classic SPAs.
Is migrating from Pages Router to App Router worth it?
For new features almost always — App Router brings React Server Components, parallel routes, streaming and easier data fetching. We typically migrate incrementally, route by route, without shutting down Pages Router entirely. Prerequisite is a realistic test and rollout plan, which we put together in the discovery phase.
Why nextlevels instead of a freelancer team?
We deliver Next.js projects as a team with senior engineering, UX, DevOps and SEO under one responsibility. Our locations in Mönchengladbach and Düsseldorf allow on-site workshops in NRW, and we've been running customer products in production for years — including on-call, monitoring and performance SLAs.
How do you integrate TanStack into Next.js projects?
We use TanStack Query for client data with cache and background-refetch logic, TanStack Router for complex authenticated sub-apps within a Next.js route, and TanStack Table for scalable data UIs. Server Components deliver the initial snapshot; TanStack takes over interactivity after hydration.
Which hosting options do you recommend for Next.js?
For most products Vercel is the fastest option — preview deployments, ISR and edge work out of the box. For GDPR requirements, dedicated databases or enterprise compliance we also host on our own Kubernetes clusters or Maxcluster with container pipelines. We decide together with you.
Ready for a Next.js project?
Send us a short message about what you have in mind — we'll get back to you within one business day with concrete next steps.
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