Astro.js is a modern web framework designed to build fast, content-focused websites. It solves the problem of making content-rich websites exceptionally fast by using server-first rendering and pre-rendering pages during the build process. Astro's "island architecture" approach serves static HTML by default without JavaScript bloat, prioritizing performance over complex applications. This philosophy directly impacts business success, as every 100ms faster a site loads leads to 1% more conversions and potentially increased earnings. Astro integrates seamlessly with headless CMS platforms like Strapi, enabling the creation of content-driven websites with modern development tools. The framework provides flexibility in integrating components from React, Vue, Svelte, and other frameworks while maintaining performance benefits. With its zero JavaScript approach by default, Astro reduces data sent to the browser, improving load times and search engine optimization without additional configuration.