Astro is best known for content-first sites that ship fast by default and add JavaScript only where you need interactivity. The alternatives landscape spans everything from Next.js—an all-in-one React-first framework with deep SSR/streaming, React Server Components, and ISR for app-style builds—to simpler static generators like Eleventy that stay close to HTML/CSS and let you organize projects with minimal convention. For documentation portals, Docusaurus stands out with batteries-included docs features (navigation, plugins, versioning, i18n), while Lume offers a Deno-first, stability-focused SSG for teams who prefer that ecosystem; at the far end, Sitesauce targets static performance by converting existing dynamic sites rather than rebuilding them.
In evaluating these options, we considered the rendering model (static, hybrid, SSR/streaming), the path to interactivity, data/CMS workflows and revalidation, ecosystem maturity and hiring/community support, deployment and self-hosting tradeoffs, and long-term maintainability (docs quality, plugin stability, and how much “framework” you’re opting into).