Next.js Development Company
We build production-grade Next.js applications with App Router, Server Components, and Edge Runtime — delivering websites that load fast, rank well, and scale effortlessly.
What We Deliver
Next.js 15 is the gold standard for modern web development, and InfinityStack is one of the few agencies that works exclusively in the App Router paradigm — Server Components, streaming SSR, edge caching, and parallel route patterns. We've shipped Next.js marketing sites, SaaS platforms, e-commerce storefronts, and complex multi-tenant applications — all optimised for Core Web Vitals and search engine indexing.
- Next.js 15 App Router with React Server Components
- Edge Runtime deployment for global sub-100ms TTFB
- Core Web Vitals optimisation — LCP, CLS, INP targets hit
- Advanced caching strategies with ISR and on-demand revalidation
- Middleware-based authentication and personalisation
- Full TypeScript with strict mode — zero type errors at build
Services & Capabilities
Marketing Websites & Landing Pages
SEO-optimised Next.js websites with perfect Lighthouse scores, structured data, and conversion-optimised landing pages.
SaaS Platforms
Multi-tenant SaaS applications with Next.js App Router, Stripe billing, RBAC, and admin dashboards built for scale.
E-Commerce Storefronts
Headless Next.js storefronts connected to Shopify, WooCommerce, or custom backends — fast, SEO-friendly, and conversion-optimised.
Next.js API Development
Edge-optimised API routes and Route Handlers with middleware, streaming responses, and webhook processing.
Performance Optimisation
Audit and optimise existing Next.js applications — bundle analysis, image optimisation, caching strategy, and rendering mode selection.
Next.js Migration
Migrate from Pages Router to App Router, or from other frameworks to Next.js, with feature parity and improved performance.
How We Work
Architecture Planning
We design the rendering strategy (SSR/SSG/ISR/client), caching topology, and data fetching patterns before writing code.
Foundation Setup
Project scaffold with TypeScript strict mode, ESLint/Prettier, testing infrastructure, and CI/CD pipeline from day one.
Core Feature Development
Feature-by-feature development with Vercel preview deployments — your team reviews every change in a live environment.
SEO Implementation
Metadata API, structured data, sitemap generation, robots.txt, and Core Web Vitals optimisation as standard.
Performance Testing
Lighthouse CI, WebPageTest, and real user monitoring (RUM) to validate Core Web Vitals targets before launch.
Vercel Deployment
Production deployment with preview environments, monitoring alerts, edge configuration, and performance dashboards.
Technologies We Use
Frequently Asked Questions
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