Your App Router Platform,
Built to Score 90+ on Mobile.
We build Next.js 15 App Router platforms, headless ecommerce frontends, and edge-deployed applications for teams that cannot afford slow load times. Every project ships with Lighthouse 90+ or above on mobile. Measured at delivery, not promised in a proposal.
"Every 100ms of load time cost us 1% in conversions. On mobile, we were sitting at 4.1 seconds."VP of Product, D2C ecommerce brand — before rebuilding on Next.js App Router
Your JavaScript loads first. Your content waits. Every second that passes is a measurable drop in revenue, and your users feel it before you do.
What a Next.js rebuild actually changes: before and after, in real numbers
Real delivery data from a real project. Every number measured at handoff, not promised in a proposal.
These are the actual scores from CollectPCS, a headless ecommerce platform Redefine built on Next.js 15. We pull this report on every project. You receive it at delivery. If a metric misses the agreed target, we fix it before sign-off.
Core Web Vitals (p75)
Five Next.js features most agencies ignore. These are the ones that move your Lighthouse score.
Select any item to see how it works and what it means for your site speed.
Server Components run on the server. They send ready-to-read HTML to the browser. Your API calls, database queries, and CMS fetches stay server-side. They never inflate the client bundle. The user sees content on the first byte, not after a blank screen resolves.
We treat Server Components as the default on every layout and page. Client Components are added only when state or browser APIs require them. We document each one. The result: 40 to 60 percent less JavaScript shipped to the browser on every route we deliver.
Custom software development →Every image we build with uses the next/image component. It automatically converts images to WebP and AVIF, loads them lazily, and locks pixel dimensions before the image arrives. Your layout never shifts when the image loads. That is what drives CLS to zero on image-heavy pages.
Fonts are self-hosted at build time using next/font. There is no third-party font request. There is no invisible text flash while fonts load. Every web font on the page is stable from the first paint. Designers and SEO teams both win.
Product pages use ISR: they are pre-built as static HTML and served from the CDN edge. When inventory, pricing, or content updates, Next.js regenerates only that page in the background. The next visitor gets the fresh version instantly. Your pages load in 8ms from the CDN. Your data stays current. You do not rebuild the whole site for a price change.
SaaS product development →Next.js Middleware runs at the CDN edge, before your origin server ever receives the request. Authentication checks, geolocation-based redirects, A/B test group assignment, and feature flags all execute in under 1ms. Your A/B tests do not slow the page. Your auth checks do not add round trips. Your personalization fires before the user sees anything, with no flicker and no cold start delay.
Next.js Metadata API generates all meta tags, Open Graph images, Twitter cards, and JSON-LD structured data from a single typed function per route. No SEO plugins. No runtime injection. No missing tags at launch. Dynamic product pages pull metadata from your CMS at build or request time. Your pages index correctly on day one. You stop finding missing meta tags in Search Console six months later.
Enterprise software development →The right rendering mode for each route. We choose it deliberately, not by default.
Most Next.js teams use one rendering mode for everything. We pick the right one per route, document the choice, and explain it to your team. Select a strategy to see how it works.
Pages are pre-built at deploy time and served from the CDN edge. No origin request on page load. The fastest possible load time, typically 8 to 20ms globally, regardless of where your user is.
Use for:
Pages start as static HTML and update silently in the background when your data changes. Every user gets an instant page load. When content is updated, the next visitor gets the fresh version without waiting. This is the right choice for product pages with live inventory and pricing.
Use for:
We render the page fresh on the server for every request. Use this when content must be fully personalized or must reflect real-time state. The page load is slightly slower than static, but the user never sees blank placeholders while data loads.
Use for:
The server delivers a shell instantly. Your JavaScript loads the data after the page arrives. CSR is right for private dashboards and real-time feeds that should not expose data in server responses. We mark these routes explicitly. CSR is never the default on public routes.
Use for:
CollectPCS needed a headless ecommerce platform built for collectibles. It now scores 90+ on Lighthouse mobile.
CollectPCS could not handle pre-orders, limited inventory drops, or flexible payment plans in their existing ecommerce stack. Mobile performance was failing, which cost them conversions on high-value collectible releases.
Three things we do on every Next.js project that most teams skip.
Most projects start with component design and finish with a bundle analysis that reveals regret. We flip that. Before Sprint 1, we set a bundle budget in writing: how much JavaScript is allowed per route, which dependencies are permitted, and what the maximum page weight is. Your Lighthouse score at delivery is never a surprise.
Most React teams reach for "use client" as the default because that is how React worked before App Router. This means they ship far more JavaScript than their pages need. In every project we deliver, Server Components are the default. Every Client Component requires a written justification in the file where it lives. The result: a client bundle 40 to 60 percent smaller than the industry average.
React development services →At handoff, we run a Lighthouse audit on every route. We pull Chrome UX Report data from the field. The delivery document includes actual scores per page category, a Core Web Vitals field report, and a bundle analysis export. You see exactly what you received. If any score misses the agreed target, we fix it before sign-off. No exceptions.
What engineering leads ask before starting a Next.js project.
We build on Next.js 14 and 15 with the App Router. We do not use the Pages Router for new projects. The App Router with React Server Components is the current standard because it gives you streaming, partial hydration, and component-level data fetching. The biggest practical benefit: far less JavaScript ships to the browser, which means faster load times on every route.
Our Next.js projects consistently score 90 or above on Lighthouse mobile performance. Most headless ecommerce projects reach 95 to 100. Core Web Vitals targets are agreed in the discovery phase and measured at delivery. We use Vercel Web Analytics and Google Search Console to verify real-user performance data after launch.
Yes. We build Next.js frontends for Shopify, BigCommerce, Medusa, and custom API backends. Headless ecommerce is one of our most common engagements. Product pages use Incremental Static Regeneration, so they load from the CDN edge but update automatically when inventory or pricing changes. See Node.js development services for how we build the backend.
A standard React project renders entirely in the browser. Search engines receive an empty HTML shell and wait for JavaScript before they can read your content. With the Next.js App Router, components render on the server by default. The browser receives a fully populated HTML document on the first request. That single change is the difference between a Lighthouse score of 38 and a score of 90+ on the same design.
Next.js engagements typically run between $40,000 and $220,000. The range depends on whether the project is a new build, a migration from a client-side React app, or a full headless ecommerce frontend. We scope before we quote. See our Next.js pricing guide for a phase-by-phase breakdown, or start a strategy call and we will scope it for your specific situation.
Most Next.js projects take 8 to 20 weeks from kickoff to launch, depending on scope and integration complexity. A focused headless frontend for an existing Shopify store can ship in 8 to 10 weeks. A full-stack TypeScript platform with custom backend logic typically runs 16 to 20 weeks. We deliver in two-week sprints and share a working build after Sprint 1.
Who gets the best results working with us, and who does not.
Not sure where you fall? Tell us your situation. We will give you a straight answer.
Describe your project. We will send you an architecture proposal in three days.
We respond within 48 hours. No commitment. No pitch. No generic discovery deck.
Submit brief → call within 48 hours → architecture proposal in 3 days → Sprint 1 starts week 2
We will review your Next.js project brief and reach out within 48 hours to schedule a strategy call. Your architecture proposal follows within three business days.
