This is not a “framework X is bad” article. Both Astro and Next.js are excellent tools built by talented teams. The question is which one is the right fit for marketing websites specifically, and the answer is more nuanced than most comparison articles suggest.
The Core Difference
Astro and Next.js make opposite default assumptions about what a web page is.
Next.js assumes your page is an application. It ships a React runtime, hydrates the page on the client, and gives you tools to manage state, handle interactions, and fetch data dynamically. Server components in Next.js 13+ reduce the client-side JavaScript, but the framework still operates within a React paradigm.
Astro assumes your page is a document. It generates static HTML by default and only adds JavaScript where you explicitly opt in with island architecture. There is no default runtime, no hydration pass, no virtual DOM.
For a marketing website, which assumption is closer to reality? Most marketing pages are documents. They have text, images, maybe a video, a contact form, and some navigation. The interactive parts are small and isolated. The Astro assumption is the correct one for this use case.
Performance: The Numbers
Performance differences between frameworks are often overstated in benchmarks and understated in production. Here is what actually matters for marketing sites:
Time to First Byte (TTFB): For static pages, both frameworks can serve from a CDN edge with sub-100ms TTFB. Astro has a slight edge because there is no server-side React rendering step when using fully static output. Next.js with export mode is comparable.
Largest Contentful Paint (LCP): This is where the gap widens. A typical Astro marketing page sends 0-5 KB of JavaScript. A comparable Next.js page sends 80-150 KB minimum (React runtime + Next.js runtime + page component). Even with code splitting and tree shaking, the baseline is higher.
Total Blocking Time (TBT): Zero JavaScript means zero blocking time on Astro pages. Next.js hydration creates a brief blocking period where the main thread is occupied parsing and executing React code. On fast devices this is imperceptible. On mid-range mobile devices, it can add 200-500ms of delay.
Cumulative Layout Shift (CLS): Both frameworks handle this well when configured properly. No meaningful difference.
The practical result: Astro marketing sites consistently score 95-100 on Lighthouse without any optimization effort. Next.js marketing sites typically score 85-95 out of the box and require deliberate optimization (dynamic imports, selective hydration, bundle analysis) to reach 95+.
Developer Experience
This is where the comparison gets interesting because both frameworks have strong developer experiences in different ways.
Astro Wins
Simpler mental model: An Astro component is essentially HTML with some JavaScript build logic in the frontmatter. There is no distinction between server components and client components to reason about. No “use client” directive. No serialization boundary. If you want client-side JavaScript, you add client:load to a component. That is the entire API surface for interactivity.
Framework flexibility: Need a React component for a complex form? Use React. Want a Svelte component for an animation? Use Svelte. Astro does not care. Each island can use whatever framework makes sense for that specific interaction. This is not just a theoretical benefit; it means you can adopt the best tool for each job without committing your entire site to one ecosystem.
Content Collections: Astro’s built-in content management with type-safe schemas is genuinely excellent. Define your schema with Zod, write content in Markdown or MDX, and get full type safety throughout your templates. Next.js has no equivalent built-in feature; you need third-party solutions like Contentlayer or a CMS.
Build output: Astro generates plain HTML files that can be hosted anywhere. S3, Netlify, Vercel, Cloudflare Pages, a Raspberry Pi running nginx. Next.js has a more complex output that benefits from Vercel’s platform features but adds deployment constraints if you self-host.
Next.js Wins
Application features: If your marketing site has an authenticated dashboard, a real-time chat widget, a complex multi-step form with client-side validation, or any feature that behaves like a web application, Next.js gives you more tools out of the box. Server actions, middleware, API routes with full Node.js access, and the entire React ecosystem.
Team familiarity: Most frontend developers know React. If your team lives in the React ecosystem, the context switch to Astro component syntax has a cost. It is not a steep learning curve, but it is a learning curve.
Ecosystem maturity: Next.js has been around longer and has a larger ecosystem of plugins, examples, and community solutions. If you hit a problem, there is likely a Next.js-specific solution documented somewhere.
Incremental adoption: If you are adding marketing pages to an existing Next.js application, it makes sense to keep everything in one framework. Splitting between Astro for marketing and Next.js for the app adds operational complexity.
The Honest Recommendation
Choose Astro when:
- You are building a marketing site, portfolio, documentation site, or blog
- Performance and Core Web Vitals are a priority (they should always be, but especially for SEO-dependent sites)
- Your interactive needs are limited to forms, modals, carousels, and similar isolated components
- You want the simplest possible deployment and hosting setup
- You are starting a new project without existing React infrastructure
Choose Next.js when:
- Your marketing site is part of a larger application with authenticated features
- You need server-side rendering for personalized content on every request
- Your team is deeply invested in the React ecosystem and switching has a high cost
- You need real-time features, complex client state management, or heavy API integration
The overlap zone:
Both frameworks handle blog sites, landing pages, and multi-page marketing sites well. If your site is in this zone and you do not have strong existing preferences, Astro will give you better performance with less effort. But Next.js will also produce a perfectly good marketing site if you already know it.
What About Hybrid?
Both frameworks support hybrid rendering (some pages static, some server-rendered). Astro’s hybrid output mode lets you mark specific routes as server-rendered while keeping everything else static. Next.js does this through its App Router with per-route rendering strategies.
If you need a few dynamic pages (like a pricing page with A/B testing or a page with user-specific content), both frameworks handle it. The difference is still in the default assumption: Astro starts static and opts into dynamic. Next.js starts dynamic and opts into static.
The Template Approach
Astro Starter exists because choosing the right framework is only step one. Configuring the build system, setting up a design system, creating SEO infrastructure, building responsive layouts, implementing dark mode, and structuring content collections takes time even after you have made the framework decision.
The template handles all of that so you can focus on what actually differentiates your site: the content and the design. Whether you keep the existing design or rebuild every component, the infrastructure is already there.
For marketing sites, Astro is the better default choice. It produces faster sites with less complexity, and for the use case of “presenting content to visitors,” that is exactly what you want.
