Modern web users don’t wait. We build web platforms that load fast, support strong search performance, and convert — using React, Next.js, Astro, and SvelteKit. Core Web Vitals and maintainability are designed in from day one.
Built for Performance, Speed, Quality
Lighthouse | Core Web Vitals | Best Practices
Most web projects are built for launch day, not for users. Fast on fiber, slow on mobile. Great on desktop, broken on 3G. The problem is not your team — it is the gap between modern expectations and legacy development practices.
Web performance is not an optimization project. It is a foundational requirement. Search engines rank fast sites higher. Users abandon slow ones without second thoughts. Mobile visitors penalize bloated JavaScript. Core Web Vitals (LCP, INP, CLS) are not metrics to fix later — they are constraints to design for now. We treat performance as a feature: measurable, testable, and non-negotiable.
Build first, optimize performance later
Design within performance budgets from day one
No refactors. No rewrite panic. Performance stays fast because it was never allowed to become slow.
Heavy frameworks for everything
Right tool for the job: Astro for content, React for interactivity
Smaller bundles. Faster loads. Less JavaScript shipped means happier users and better rankings.
Desktop-first with mobile as an afterthought
Mobile-first performance as the baseline
Your mobile users (most of them) get the same snappy experience as desktop visitors — no broken flows, no frustrated taps.
"It feels fast enough" as a measurement
Core Web Vitals targets: LCP < 2.5s, INP < 200ms, CLS < 0.1
Clear thresholds. Real metrics. You know exactly where you stand and what needs improvement.
Ship it, we will fix the spaghetti code later
Keepable architecture from day one
Your team can actually maintain and extend the platform without fighting the codebase every time.
Guessing where performance bottlenecks are
Platform audit with Core Web Vitals targets
Data-driven roadmap. Highest-leverage fixes first. Predictable results.
These are the platforms we build and the technical challenges we solve every day.
An existing online store was slow on mobile. Cart abandonment was high. Search performance was slipping.
Rebuilt the storefront with Next.js 16, server components, and edge caching. Implemented route prefetching, optimized images with next/image, and lazy-loaded non-critical JavaScript.
Mobile performance improved dramatically. Checkout completion recovered. Search performance stabilized as the site became fast and crawlable again.
A B2B SaaS platform needed a dashboard that updates in real time without page reloads. The existing implementation constantly polled the server and crushed database performance.
Implemented Server-Sent Events (SSE) for real-time data push. Built a React dashboard with optimistic UI updates and background sync. Cached frequently accessed data with Redis.
Database load dropped and updates became near real-time. The platform scaled to higher concurrency without degrading responsiveness.
A blog and documentation site built with a heavy SPA framework had poor SEO and loaded slowly. Content updates were slow and deployments were painful.
Migrated to Astro with zero JS by default. Implemented static generation, content collections, and MDX for rich content. Added intelligent partial hydration for interactive elements.
Pages loaded fast and reliably. Crawlability improved. Builds and deployments became dramatically simpler and faster.
A startup needed a web application that felt native. Complex state management, real-time collaboration, and offline capabilities were required.
Built with SvelteKit for minimal bundle size and maximum performance. Implemented IndexedDB for offline storage, WebSockets for real-time sync, and Svelte stores for reactive state.
The app stayed responsive on slow connections, worked offline, and supported real-time collaboration without shipping a heavy bundle.
Modern web platforms for teams that care about performance, maintainability, and user experience.
Full-stack React applications with Next.js 16. Server components, streaming SSR, route handlers, and edge deployment. From landing pages to complex dashboards.
Blazing-fast content sites with Astro. Zero JS by default. Static generation with intelligent partial hydration. Perfect for blogs, docs, and marketing sites.
High-performance web applications with minimal bundle size. Built-in state management, form actions, and file-based routing. Ideal for apps that need to feel instant.
Audit and optimization of existing platforms. We analyze LCP, INP, CLS, and implement fixes. Image optimization, code splitting, caching strategies, and bundle reduction.
Migrate legacy platforms to modern frameworks. jQuery to React. SPA to Next.js. WordPress to Astro. We preserve functionality while dramatically improving performance and maintainability.
Reusable component libraries with Storybook documentation. Consistent UI across products. Atomic design principles with TypeScript for type safety.
For the technical evaluator. These are the implementation details we can discuss in architecture reviews — not marketing slogans.
We design to hit LCP < 2.5s, INP < 200ms, CLS < 0.1 from the start — not as an afterthought.
You get clear targets, a measurement plan, and monitoring so performance stays visible after launch.
Critical content works without JavaScript. Interactivity layers on top for capable browsers.
Your site stays usable when scripts fail, networks degrade, or devices are underpowered.
We deploy to the edge (Cloudflare Workers, Vercel Edge) when it makes sense — reducing latency for global users.
Performance becomes a property of architecture, not an endless cycle of patches.
We analyze bundles, eliminate unused code, and lazy-load routes. Tree-shaking is not optional.
Less JavaScript shipped means faster loads, better caching, and fewer regressions.
TypeScript from frontend to backend. Zod or Arktype for runtime validation. Types that catch bugs before deployment.
Fewer runtime errors, better IDE support, more confident refactors.
Unit tests for business logic. Integration tests for critical flows. E2E tests for user journeys. No coverage theater.
You can ship with confidence because critical behavior is exercised by tests.
These are conversations we have weekly. If any sound familiar, you are not alone — and you are in the right place.
"Our site is slow on mobile. Customers bounce before the page even finishes rendering. Our SEO rankings are dropping."
Slow mobile performance kills conversions. Search engines penalize slow sites. Users expect instant loading, and they do not forgive delays.
Performance-first development with Core Web Vitals targets from day one. We build fast, measure continuously, and fix issues before they become problems.
"Every feature we ship makes the site slower. Our JavaScript bundle keeps growing. We are afraid to touch anything because we might break performance."
Uncontrolled technical debt accumulates. Without performance budgets, every addition degrades the experience. The codebase becomes a fragile maze.
Disciplined bundle optimization, code splitting, and performance budgets. We keep the platform fast as it grows, not slow under its own weight.
"We need to rebuild our platform, but we cannot afford to pause business. A full rewrite would take months and risk everything."
Legacy platforms become unmaintainable, but complete rewrites are risky and expensive. Teams feel trapped between bad options.
Incremental migrations using the Strangler Fig pattern. We replace the old system piece by piece while keeping the site live and revenue flowing.
"Our agency built us a beautiful site, but nobody can maintain it. The code is a mess. Every change breaks something else."
Pretty deliverables do not make maintainable products. Without clean architecture, type safety, and tests, the codebase becomes a liability.
Keepable architecture with clear patterns, TypeScript throughout, and comprehensive tests. Your team can actually work with the code we deliver.
"We are stuck on old tech. jQuery, legacy PHP, a WordPress install from 2018. Hiring is impossible because nobody wants to work with this stack."
Legacy technology limits your ability to hire, ship features, and compete. Modern developers avoid outdated stacks, and your velocity suffers.
Migration to modern frameworks with a clear plan. We preserve what works, replace what does not, and set you up to hire from the modern talent pool.
We build code your team can maintain. Clear patterns, comprehensive documentation, and knowledge transfer. No vendor lock-in, no proprietary magic.
We do not optimize performance as an afterthought. We design for Core Web Vitals from day one, measure continuously, and fix issues before they reach production.
For European clients: we design for GDPR compliance, data residency options, and privacy-by-default. Frankfurt and Zurich deployment targets available.
Predictable pricing with clear deliverables. You know exactly what you are getting and how much it costs. No surprise invoices, no scope creep.
Full source code delivery. No proprietary platforms. No license fees. If we part ways, you keep the code and can evolve it with your internal team or another partner.
Answers to common questions about this service.
Slow sites leak customers. Weak Core Web Vitals can drag down search performance. Your competitors are not standing still. The good news: performance is solvable — with the right architecture, the right frameworks, and the right team.
Get a clear technical assessment. We analyze Core Web Vitals, identify bottlenecks, and recommend the highest-leverage fixes. No obligation, no sales pitch — just practical next steps.
No commitment required • Free consultation • Response within 24h