Next.js vs Astro for Marketing Sites: A Practical Comparison
For service business marketing sites, the technical decision between Next.js and Astro has real performance and SEO implications. Pick the wrong one and you will fight your framework.
Next.js dominates the broader React ecosystem. Astro is the rising star for content-first sites. Both can build a fast marketing site — but they optimize for different things.
Where each framework wins
- Next.js: best when the site has significant interactive functionality (dashboards, calculators, configurators)
- Astro: best when the site is mostly content (blog, marketing pages, documentation)
- Next.js: best when the team already knows React
- Astro: best when you want zero JavaScript shipped to the browser by default
- Next.js: best for sites that need server-side rendering for personalization
- Astro: best for sites where Core Web Vitals are the top priority
The performance gap that matters
For pure marketing content sites, Astro typically ships 50-90% less JavaScript than an equivalent Next.js site. That difference shows up directly in Core Web Vitals scores and search rankings. For interactive applications, Next.js is the safer bet.
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Bottom line
For most service business marketing sites in 2026, Astro is the right default choice. For sites with calculators, member portals, or heavy interactivity, Next.js still makes sense.
Further reading: Astro's official documentation.