For content sites, usually, and by default rather than by effort. Astro ships zero JavaScript unless a component opts in, so a blog or marketing page starts near the performance ceiling. A well-built Next.js site also scores well, but it takes discipline to keep the application payload lean on pages that are really just documents.
Platform comparison
Astro vs Next.js
We ship production work on both, and the choice comes down to what the page really is. Astro is our pick when the site is content: documents that should load instantly and rank. Next.js is our pick when the site is an application wearing a URL.
Talk through your buildSide by side
Which we use when.
| Astro | Next.js | |
|---|---|---|
| Best fit | Content-first sites where speed and SEO are the product | Applications with rich, connected interactivity throughout |
| JavaScript shipped | None by default; islands hydrate only the components that need it | A React application, trimmed by server components but present by design |
| Mental model | Pages are documents with interactive islands dropped in | The page is an application that happens to render on the server first |
| Component model | Bring your own: React, Svelte, Vue, or plain Astro components, even mixed | React end to end, with the ecosystem that comes with it |
| Data and routing | Content collections and static generation first, server rendering when needed | Server components, server actions, and layered caching for app workloads |
| Team fit | Reads like HTML; approachable for content-heavy teams | Deep React expertise pays off, and the hiring pool runs deep |
This reflects how we select between the two on real builds, not a vendor feature audit. Framework releases move fast; the selection criteria above have stayed stable.
The short answer
Ask what the page is, not which tool is newer.
Both frameworks can render fast, SEO-ready HTML. The question worth asking is whether the screen is a document with some interactivity or an application with some content, because each framework makes one of those the easy path.
- Choose Astro
- Marketing sites, blogs, docs, and storefronts where content dominates and load time compounds into rankings and conversions.
- Choose Next.js
- Products, dashboards, and logged-in surfaces where state and interactivity span the whole page.
- Either way
- Server-rendered HTML, green Core Web Vitals, structured data, and internal linking do the SEO heavy lifting.
Primary sources
Check the vendors directly.
- Astro astro.build
Official site: the content-first framework and its island architecture.
- Astro Docs docs.astro.build
Vendor documentation for islands, content collections, and rendering.
- Next.js nextjs.org
Official site: the React application framework.
- Next.js Docs nextjs.org/docs
Vendor documentation for the App Router, server components, and caching.
Framework capabilities change on the maintainers’ schedule, not ours. These are the official pages to verify current detail; the selection criteria on this page are our own.
Questions
Astro and Next.js, answered.
These answers describe how we choose and build, which is the part that stays true as framework releases move.
Not sure which one fits