Sites built with Astro

The strategic case for Astro centers on content velocity and performance economics. For marketing sites, documentation platforms, and e-commerce storefronts where SEO isn't optional, Astro delivers Lighthouse 100s without heroic optimization effort. It's framework-agnostic component model means you're not locked into React's hiring market or Vue's ecosystem risks. You can migrate incrementally, reuse existing component libraries, and avoid the vendor Stockholm syndrome that plagues Next.js shops when Vercel changes pricing. The build-time rendering model collapses infrastructure costs because you're serving static HTML, not running Node servers at scale. For CTOs managing burn rate, that's a 70-90% reduction in hosting spend versus SSR frameworks.

Astro's content collections and type-safe Markdown handling is genuinely best-in-class. The developer experience for content-driven sites is cleaner than anything Hugo or Jekyll ever offered, with full TypeScript integration and none of the Go template hell. Performance is non-negotiable: you get Core Web Vitals compliance almost for free because the default output is HTML. The framework makes the right thing the easy thing, which matters when you're scaling teams.

The weakness is interactivity ceiling. Astro's mental model fractures when you need significant client-side state management or real-time features. Yes, you can hydrate islands with full React apps, but now you're managing two architectures: static shell plus dynamic chunks. The routing story for SPAs is deliberately underpowered because that's not Astro's fight. For dashboards, collaborative tools, or anything resembling a web application, you're fighting the framework. The ecosystem is young, meaning third-party integrations are thin compared to Next.js's mature plugin landscape. View transitions are slick but still experimental, and server-side rendering support (added later) feels tacked on rather than foundational. If your product roadmap involves evolving from marketing site to interactive platform, Astro becomes technical debt you'll refactor out within 18 months.