Astro.js vs Next.js for marketing sites: Which should you choose?
March 17, 2026 · 4 min read
The short answer: Use Astro.js for content-heavy marketing sites where performance and SEO are the priorities. Use Next.js for applications that require significant client-side interactivity, real-time data, or complex user authentication. Both are excellent frameworks - they just solve different problems.
What is Astro.js?
Astro.js is a web framework built specifically for content-driven websites. Its defining feature is an Islands Architecture that ships zero JavaScript by default, only hydrating interactive components when they are explicitly needed. The result is fast, fully server-rendered HTML that search engines can crawl instantly. Lucky Media is an Official Astro Partner and builds Astro sites for US-based startups and enterprise teams.
What is Next.js?
Next.js is a React framework designed for both static and dynamic web applications. It excels at server-side rendering, API routes, and building complex interactive experiences. With features like React Server Components, incremental static regeneration, and a mature middleware system, Next.js is the default choice for SaaS products, dashboards, and e-commerce platforms. Lucky Media builds in Next.js for clients who need exactly this.
Performance: the key difference for marketing sites
This is where the choice becomes clear for most marketing sites. Astro ships zero JavaScript by default. Next.js ships a React runtime and your application bundle with every page, even when the page is entirely static content.
In practice, Astro sites typically score 90+ on all four Lighthouse categories without any extra configuration. A comparable Next.js site requires careful optimization (lazy loading, bundle splitting, third-party script deferral) just to reach the same baseline. For marketing sites where your homepage, service pages, and blog posts are mostly static content, Astro wins on performance with significantly less effort.
SEO: both are capable, but Astro requires less configuration
Both frameworks produce server-rendered HTML that search engines can index. The difference is in the default behavior. Astro's output is pure static HTML, there is no hydration gap, no risk of crawler timing issues, and no JavaScript that must execute before content is visible to Google.
Next.js can achieve the same SEO results, but it requires deliberate choices: using the App Router correctly, avoiding excessive client-side rendering, keeping Core Web Vitals in check. With Astro, these are the defaults. For marketing teams who want strong SEO without deep framework knowledge, Astro is the lower-risk choice.
CMS integration
Both Astro and Next.js work with all major headless CMSes: Statamic, Contentful, Sanity, and Prismic. The integration experience is similar. One area where Astro has an advantage is for Markdown and MDX-heavy sites, documentation, blogs, and knowledge bases, where Astro's built-in Content Collections give you type-safe content management with zero configuration.
Developer experience
Astro uses a simpler mental model for content sites. Pages are just components that output HTML. You can use React, Vue, or Svelte components inside Astro when you need interactivity. For teams focused on marketing sites, this simplicity translates to faster development and less risk of accidentally shipping too much JavaScript.
Next.js has a richer ecosystem and more built-in features for application development: authentication helpers, middleware, API routes, and deep React integration. For teams building SaaS products or any site with significant authenticated user flows, Next.js's richer toolkit is the right tradeoff.
When to choose Astro.js
Astro is the right choice when your primary goals are performance, SEO, and fast content publishing:
Marketing sites, company homepages, and brochure sites
Blogs and content-heavy platforms
Documentation sites
Landing pages and campaign microsites
Sites migrating from Webflow, WordPress, or Gatsby where performance is the primary driver
When to choose Next.js
Next.js is the right choice when your site has significant dynamic, user-specific behavior:
SaaS dashboards and authenticated app interfaces
E-commerce with cart, checkout, and account management
Real-time features (live data, websockets, polling)
Applications where most pages are behind authentication
Teams already deep in the React ecosystem with complex shared component libraries
Not sure which one fits your project?
Lucky Media builds in both Astro.js and Next.js. We help clients choose based on their actual use case, not framework preference. If you have a marketing site that needs to be fast, rank well, and give your content team full autonomy, Astro is almost always the right answer. If you are building a product with a logged-in experience, we will likely point you toward Next.js.
Ready to build your site?
Get in touch and we can walk through the decision together. See our Astro development service or our Next.js development service.
Lucky Media is proud to be recognized as a leading software development agency for both Astro and Next.js.
FAQ
Is Astro.js better than Next.js for SEO?
Astro.js and Next.js are both capable of producing fully server-rendered HTML that search engines can index.
However, Astro has an advantage for marketing sites because strong SEO is the default, not a configuration task. Astro ships zero JavaScript, which means no hydration delays, no crawler timing risks, and no client-side rendering that could obscure content from Google.
With Next.js, achieving the same SEO results requires deliberate choices around the App Router, Core Web Vitals, and rendering strategy.
If SEO is your primary concern and your site is mostly static content, Astro is the lower-risk choice.
Can you use Astro.js with a headless CMS?
Yes. Astro works with all major headless CMS-es including Statamic, Contentful, Sanity, and Prismic. The integration experience is comparable to Next.js. Where Astro has a built-in advantage is for Markdown and MDX-heavy content, such as blogs, documentation, and knowledge bases, where its Content Collections feature gives you type-safe content management with zero extra configuration.
What is Islands Architecture in Astro.js?
Islands Architecture is the core concept behind how Astro handles JavaScript. Instead of shipping a full JavaScript bundle to the browser for every page, Astro renders everything as static HTML by default and only loads JavaScript for specific interactive components, called islands, when they are explicitly needed. This means the majority of your page loads instantly without any JavaScript execution, which is why Astro sites routinely score 90 or above across all four Lighthouse categories without extra optimization work.
Should I use Astro or Next.js for a SaaS product?
For a SaaS product, Next.js is almost always the right choice. SaaS applications typically require authenticated user flows, real-time data, complex client-side state, and API routes, all areas where Next.js excels. Its built-in support for React Server Components, middleware, incremental static regeneration, and authentication helpers makes it the mature, well-supported choice for products where most of the experience lives behind a login.
Astro is optimized for content that is the same for every visitor, which is rarely the case for a SaaS dashboard.
How does Astro.js compare to Next.js on Core Web Vitals?
Astro has a structural advantage on Core Web Vitals, particularly Largest Contentful Paint (LCP) and Total Blocking Time (TBT). Because Astro ships zero JavaScript by default, there is no render-blocking bundle that the browser has to parse and execute before displaying content. A standard Astro marketing site will typically pass Core Web Vitals without any additional optimization.
A comparable Next.js site ships a React runtime and application bundle with every page, which requires deliberate work, such as lazy loading, bundle splitting, and third-party script deferral, to reach the same performance baseline.
See our detailed side-by-side in the Astro vs Next.js comparison.
Technologies
Stay up-to-date
Be updated with all news, products and tips we share!
On this page
