Astro - The Ultra-Performant Web Framework

Des sites web ultra-rapides avec l'architecture Islands et le rendu hybride

Astro represents a new era in web development. This modern framework adopts a revolutionary approach: send as little JavaScript as possible to the browser while allowing interactivity where it is needed thanks to the Islands architecture.

We have adopted Astro as our reference framework for frontend development. Coupled with Directus, it forms an unparalleled technical stack in terms of performance and flexibility. Our sites consistently achieve Lighthouse scores above 95.

This page presents our technical expertise on Astro: how it works, its advantages, and how we integrate it with Directus to create exceptionally high-performing websites.

Astro - The Ultra-Performant Web Framework

Islands Architecture

Islands architecture allows you to create islands of interactivity in a sea of static HTML. Only components requiring interactivity load JavaScript, drastically reducing page weight.

Hybrid Rendering (SSG + SSR)

Astro offers total flexibility:

  • SSG (Static Site Generation): pre-rendered pages at build time for maximum performance
  • SSR (Server-Side Rendering): pages rendered on-the-fly for dynamic content
  • Hybrid: combination of both according to each page's needs

Zero JavaScript by Default

Unlike React or Vue which load their complete runtime, Astro sends no JavaScript by default. JavaScript is only added for components that need it, with directives like client:load, client:idle, client:visible, etc.

Compatible with All Frameworks

Astro natively integrates:

  • React and Preact
  • Vue.js
  • Svelte
  • SolidJS
  • Lit
  • Alpine.js

Directus + Astro Integration

We have developed an optimized integration between Directus and Astro that includes:

  • Automatic TypeScript typing from Directus schema
  • Reusable Astro components
  • Advanced cache and invalidation management
  • Full multilingual support
  • Automatic sitemap generation

Optimized Performance

Our Astro sites consistently achieve:

  • Lighthouse score > 95/100
  • LCP (Largest Contentful Paint) < 1.5s
  • FID (First Input Delay) < 50ms
  • CLS (Cumulative Layout Shift) < 0.1

Tailwind CSS and Modern Design

We combine Astro with Tailwind CSS to create modern, responsive, and accessible interfaces. Our utility-first approach ensures optimized and maintainable CSS.

Why Astro? Competitive Advantages
Why Astro? Competitive Advantages

Why Astro? Competitive Advantages

Zero-JavaScript architecture allows you to send only the necessary HTML/CSS. Astro automatically eliminates unused JavaScript, guaranteeing minimal loading times and maximum performance. Only real interactions require client-side JS.

Astro Zero-JS Architecture Static Site Generation (SSG) Partial Hydration Island Architecture React Integration Vue.js Components Svelte Islands SolidJS Support Lighthouse Score Optimization Core Web Vitals First Contentful Paint (FCP) Largest Contentful Paint (LCP)
Astro in Production - Concrete Solutions
Astro in Production - Concrete Solutions
Astro in Production - Concrete Solutions
Astro in Production - Concrete Solutions

Astro in Production - Concrete Solutions

Content-driven sites are the ideal playground for Astro: ultra-high-performance showcase sites, blogs and documentation, optimized landing pages, and multilingual sites. Static content is served instantly, with targeted interactions when necessary.

Content Management Astro Content Collections MDX Integration i18n Routing Hybrid Rendering Server-Side Rendering (SSR) Astro Server Islands API Routes Directus Integration Content Collections API Typed Content Schemas Live Preview Mode
When to Migrate to a Modern Solution?
When to Migrate to a Modern Solution?

When to Migrate to a Modern Solution?

Warning signs include poor performance despite optimization, increasing maintenance costs, omnichannel needs (mobile app, IoT), recurring security issues, and blocking functional limitations. These situations warrant evaluating a migration.

Technical Debt Assessment Total Cost of Ownership Scalability Limitations Security Vulnerability History Content Migration Strategy SEO Preservation 301 Redirect Mapping Data Validation Testing Application Maintenance Contract Performance Audit Report CMS Administrator Training Digital Strategy Consulting

Choosing our Astro expertise means benefiting from:

  • native exceptional web performance, not cobbled together,
  • a modern architecture that only sends the necessary JavaScript,
  • optimized integration with Directus for content management,
  • compatibility with existing frameworks for progressive migrations.

You get ultra-fast, maintainable, and scalable websites built on the best practices of the modern web.