The web framework for content-driven websites with ultra-fast performance via Islands Architecture.
Astro is a modern web framework designed specifically for content-heavy websites. Its primary architectural innovation, the 'Astro Islands' (Islands Architecture), allows developers to build high-performance sites where most of the page is delivered as static HTML, and interactive components are hydrated only when necessary. By 2026, Astro has positioned itself as the premier choice for AI-driven content platforms, documentation hubs, and high-SEO landing pages due to its zero-JS-by-default footprint. Technically, it operates as a multi-page application (MPA) framework that supports server-side rendering (SSR), static site generation (SSG), and partial hydration. It is uniquely framework-agnostic, allowing developers to import and utilize components from React, Vue, Svelte, and SolidJS within the same project. Its 'Content Collections' feature provides a type-safe way to manage Markdown and MDX content, effectively acting as a local CMS. With the integration of Astro Studio (managed SQL database) and built-in image optimization, it provides a full-stack experience that prioritizes Core Web Vitals and developer velocity without the overhead of heavy client-side bundles.
Encapsulates UI components into isolated units that only hydrate on the client-side when needed.
The PHP Framework for Web Artisans, empowering developers to build robust, scalable applications with expressive syntax.
Elegant, component-oriented Java web development with zero-XML configuration.
The React framework for the web, optimized for performance, SEO, and developer experience.
Verified feedback from the global deployment network.
Post queries, share implementation strategies, and help other users.
A built-in data fetching layer for local Markdown/MDX with Zod schema validation.
Native browser API support for seamless page transitions without the need for a client-side router.
Run logic on the edge before a request is processed, supporting auth and localization.
Built-in <Image /> and <Picture /> components that automatically resize and convert formats.
CSS is automatically scoped to the component level by default.
Ability to render React, Vue, Svelte, and Solid components in the same project.
Slow load times on mobile devices for news or blog sites.
Registry Updated:2/7/2026
Lack of type-safety and difficulty managing thousands of documentation pages.
Low SEO rankings due to heavy JavaScript frameworks.