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London & UK
JamstackLondon AgencyPerformance-First

Agence Jamstack Londres | Astro, Next.js & Nuxt

Votre site statique se charge en 800ms — jusqu'à ce que vous ajoutiez un CMS

<100ms
Edge Load Time
Global CDN delivery
98+
Lighthouse Score
Every project target
2-5×
Faster Than WordPress
Core Web Vitals
£0
Server Vulnerabilities
Static by default
What Actually Ships When You Choose Jamstack — And What Stays Behind

Your page goes live before the database even wakes up. A Jamstack agency pre-renders every route at build time and serves it from a global CDN — no runtime queries, no server cold starts, no MySQL timeouts killing your checkout flow. Your team gets frameworks like Astro, Next.js, and Nuxt paired with headless CMS platforms that editors can actually use without Slack-tagging a developer. London Jamstack agencies exist because WordPress and monolithic PHP stacks can't hit Core Web Vitals targets without extreme caching gymnastics. Static generation means sub-second loads, zero-downtime deploys, and hosting bills that don't double when your campaign actually works. But pre-rendering breaks the moment you bolt on a legacy CMS that wasn't built for it — which is why the CMS choice matters more than the framework.

Où les projets échouent

Your WordPress site's scoring below 50 on Lighthouse and you're haemorrhaging mobile visitors Google's page experience signals are actively suppressing your rankings in UK search results.
Your monolithic CMS needs constant security patches and plugin updates Miss one, and you're not just dealing with a compromised site — you're potentially in front of the ICO explaining a UK GDPR breach.
Content editors are waiting on developers for every page change and campaign landing page Marketing slows to a crawl while competitors launch campaigns weeks ahead of you.
Your hosting bill scales linearly every time you run a promotion You're either overprovisioning infrastructure all year or watching the site fall over exactly when it matters most.
Bouncing between designers, developers, and CMS consultants means nobody actually owns the architecture Integration bugs pile up with every handoff, and accountability disappears into the gaps.
Your current agency quotes in USD, bills hourly, and shifts scope constantly Projects run 40–60% over budget with no fixed deliverables and nothing contractual in GBP.

Conformité

Static Site Generation

Pages pre-rendered at build time and served from edge nodes worldwide. No server-side processing means no server-side attack surface — and consistent sub-100ms response times regardless of where your users are.

Headless CMS Integration

Content lives in Payload, Sanity, or Contentful, completely decoupled from how it's displayed. Editors get a familiar interface. Developers keep full control over the frontend stack. Neither gets in the other's way.

Edge-First Hosting

Deployed to Vercel or Netlify with automatic global CDN distribution. Atomic deploys, instant rollbacks, and preview environments on every pull request — so you can review changes before they're anywhere near production.

Core Web Vitals Optimisation

Astro's island architecture and Next.js partial prerendering ship minimal JavaScript to the browser. Every build gets audited against LCP, CLS, and INP thresholds. If it doesn't pass, it doesn't go out.

UK GDPR & Cookie Compliance

Privacy-by-design with server-side analytics, consent management, and zero third-party trackers by default. Data residency options are available if you've got UK/EU hosting requirements.

Incremental Static Regeneration

Hybrid rendering revalidates pages on demand without triggering full rebuilds. Product catalogues, blog posts, dynamic content — it all stays current while keeping static performance intact.

Ce que nous construisons

Ships zero JavaScript by default — partial hydration only loads components when they scroll into view

Bundle size drops 40% because unused JavaScript never ships to the browser

Renders server-side in React with streaming SSR — full-stack routing at static-site speed

Your app handles 10,000 concurrent users on a $20/month Vercel plan without scaling drama

Auto-imports Vue components and deploys to edge with zero configuration required

Content teams launch campaign pages in 12 minutes instead of waiting three days for dev tickets

Runs a TypeScript-first headless CMS you host — no vendor seat fees or API rate limits

Your CMS admin lives in your repo — migrate hosts in 90 seconds with zero vendor negotiation

Publishes content in real-time with GROQ queries — editors preview changes without re-deploying

Marketing publishes A/B tests live while developers stay focused on features that actually convert

Blocks deploys below Lighthouse 95 automatically — performance gates run in CI before production

Failed builds never reach production — your Core Web Vitals stay green even when juniors deploy

Notre processus

01

Architecture & CMS Selection

We audit your content model, traffic patterns, and editorial workflow before recommending anything. You get a technical spec and a fixed quote in GBP, not a ballpark figure that triples by go-live.
Week 1
02

Design & Content Modelling

UI design in Figma runs in parallel with CMS schema design. Content types, relationships, and editorial permissions get defined before a single line of code ships. That order matters.
Weeks 2-3
03

Frontend Build & CMS Integration

Component-driven development in Astro, Next.js, or Nuxt with live CMS data. Preview environments on every branch so stakeholders are reviewing real content — not lorem ipsum.
Weeks 4-6
04

Performance Hardening & QA

Lighthouse audits, accessibility testing, cross-browser QA, and load testing against UK traffic profiles. Every page hits 95+ before we talk about a launch date.
Week 7
05

Launch & 30-Day Support

Atomic deploy to Vercel or Netlify with DNS cutover, monitoring setup, and analytics configuration. Every project includes 30 days of post-launch support — because launches aren't the finish line.
Week 8+
AstroNext.jsNuxtPayload CMSSanityContentfulVercelNetlifyTypeScriptTailwind CSS

Questions fréquentes

Combien coûte un site web Jamstack à Londres ?

Un petit site Jamstack commence autour de £5,000–£8,000. Les sites professionnels de complexité moyenne avec intégration CMS headless coûtent généralement £8,000–£25,000. Les builds e-commerce ou multilingues vont de £20,000–£50,000+. Chaque devis est à prix fixe en GBP. Pas de facturation horaire, pas de surprises de dérive de scope.

Dois-je choisir Astro, Next.js ou Nuxt pour mon projet ?

Astro est le bon choix pour les sites riches en contenu où le JavaScript minimal compte — blogs, sites marketing, documentation. Next.js a plus de sens pour les applications full-stack qui nécessitent une authentification, des dashboards ou un fetching de données complexe. Nuxt vaut le coup si votre équipe travaille déjà en Vue. Nous recommandons en fonction de ce que votre projet nécessite réellement, pas du framework que nous avons envie d'utiliser cette semaine.

Qu'est-ce qu'un CMS headless et pourquoi en ai-je besoin ?

Un CMS headless stocke et livre le contenu via API sans dicter comment il est affiché. Votre équipe contenu édite dans une interface familière tandis que les développeurs construisent le frontend dans le framework qui convient. Cela élimine les vulnérabilités de plugin, permet la publication multi-canal, et signifie que vous pouvez changer complètement de frontend sans toucher votre contenu.

Quelle est la vitesse des sites Jamstack comparée à WordPress ?

Les sites Jamstack atteignent généralement des scores Core Web Vitals deux à cinq fois meilleurs que WordPress. Les pages pré-rendues servies depuis un CDN se chargent en moins de 100ms — pas de requête base de données, pas d'exécution PHP, pas de surcharge de plugin en travers du chemin. Cela se traduit directement par un meilleur classement SEO et un taux de rebond qui chute de 20–30%.

Les éditeurs de contenu peuvent-ils mettre à jour un site Jamstack sans développeurs ?

Oui. Les plateformes CMS headless comme Sanity et Payload offrent des interfaces d'édition visuelle, l'aperçu en direct et la publication programmée. Les éditeurs de contenu peuvent créer des pages, mettre à jour le texte et gérer les médias sans aller près du codebase. Avec Incremental Static Regeneration, les modifications apparaissent sur le site en direct quelques secondes après avoir cliqué sur publier.

Hébergez-vous les sites Jamstack sur Vercel ou Netlify ?

Nous déployons sur les deux. Vercel est notre défaut pour Next.js en raison de l'optimisation native et des edge functions. Netlify fonctionne bien pour les builds Astro et Nuxt — les déploiements atomiques et la gestion de formulaires intégrée sont solides. Les deux vous donnent un CDN global, des déploiements de preview et HTTPS automatique. Si la résidence des données est une exigence, des options auto-hébergées sont disponibles.

Jamstack Projects from £5,000
Fixed-fee GBP pricing. No hourly surprises. 30-day post-launch support included.
See all packages →
Next.js DevelopmentCore Web Vitals OptimizationWordPress to Next.js Migration

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