Next.js Development Services
Square builds full-stack Next.js applications from Tirana. It is the framework we choose when a product needs rich React UI and strong SEO in one codebase. We work in the App Router with React Server Components, mix SSR, ISR and static generation per route, and push Core Web Vitals into the green. This site runs on Next.js with ISR, so the performance advice we give is advice we follow.
What we build
- SEO-critical web apps and marketing sites with SSR and ISR so pages are fast and fully crawlable
- Full-stack products using the App Router, React Server Components and Server Actions in one codebase
- Per-route rendering strategy (static, incremental, server or client), chosen for each page's needs
- Multi-locale, multi-market sites with localized routing, hreflang and translated slugs
- Edge and serverless deployment with image optimization, caching and Core Web Vitals tuned for the green zone
Why this stack
- Choose Next.js when you need both: React interactivity and server rendering for SEO, social previews and fast first paint
- One framework, one codebase: UI, API routes and data fetching live together, so a small team ships a whole product
- Per-route flexibility: static-generate the blog, server-render the dashboard, stream the feed, without separate apps
- Built-in image, font and script optimization plus edge caching make green Core Web Vitals the default, not a project
- We run this site on Next.js with ISR, so the trade-offs we recommend are ones we live with in production
- Senior engineers at EUR 35 to 55 per hour, billed monthly with no agency markup
Frequently asked questions
App Router or Pages Router for a new project?
App Router for anything new. It gives you React Server Components, streaming, nested layouts and Server Actions, which simplify data fetching and cut client JavaScript. We only stay on Pages Router when maintaining an existing app that isn't worth migrating yet.
Does Next.js really help SEO?
Yes, when used right. Server and static rendering mean crawlers get full HTML, not an empty shell; built-in metadata, sitemaps and image optimization handle the technical SEO basics. We pair that with structured data and Core Web Vitals work, the same approach that keeps square.al fast.
When is Next.js overkill?
For a login-only internal dashboard with no SEO need, plain React with Vite is lighter and simpler. For a static brochure site, a generator or CMS may be enough. We'll tell you when Next.js adds complexity you won't use.
Can you host it anywhere or only Vercel?
Either. Vercel is the smoothest path, but we also deploy Next.js in Docker on your own infrastructure or a VPS/Kubernetes cluster, which is exactly how we run our own production sites.