Next.js vs Astro

Side-by-side comparison of 2 ecommerce template stacks. Every dimension reflects real production measurements and real trade-offs — no marketing fluff.

Clear selection

Next.js

Next.js with the App Router gives you server-side rendering by default — which is the single biggest SEO advantage over client-rendered storefronts. For any store where organic search drives revenue, this is the safe choice.

What you gain

Product pages and category pages arrive as fully rendered HTML — Google indexes them on the first crawl
ISR (Incremental Static Regeneration) caches pages at the edge and only revalidates when stock or pricing changes
Works with any headless backend (Shopify or custom) through a small API layer
Huge ecosystem — every tool (Tailwind, Playwright, shadcn) has first-class Next.js support

Trade-offs

More infrastructure than a SPA — you need a Node.js runtime or Vercel-style platform
Slightly more hosting cost than pure static SPAs under heavy traffic

Performance

Median mobile LCP lands around 2.1-2.3s on Next.js storefronts — comfortably inside Google's "good" threshold of 2.5s.

SEO positioning

Highest SEO ceiling of any stack in the catalog. If organic search is a major revenue channel, this is the default recommendation.

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Astro

Astro's islands architecture ships zero JavaScript by default and only hydrates the components that need interactivity. For content-heavy stores — catalog browsing, editorial product pages, long-form marketing — this produces the best Core Web Vitals of any framework, beating even SvelteKit on content pages.

What you gain

Zero-JS default — pages ship as pure HTML + CSS unless a component explicitly needs hydration
Best mobile Core Web Vitals in the catalog for content-heavy pages
Hybrid rendering (SSG / SSR per route) — use SSG for content, SSR for product pages
Framework-agnostic — you can use React, Vue, Svelte, or Solid components in the same project

Trade-offs

Islands architecture requires more thought about hydration boundaries
Not ideal for highly interactive stores where every page needs heavy client-side state
Cart state typically lives in an interactive island — more setup than in Next.js

Performance

Mobile LCP ~1.6s and Lighthouse score ~98. The best content-page performance of any stack. Interactive pages (cart, checkout) match SvelteKit; content pages beat it.

SEO positioning

Excellent. The zero-JS-default approach means Google renders pages without executing any JavaScript, which is the fastest indexing path. If organic search is your primary revenue channel AND your store is catalog-heavy, Astro is the strictly best choice.

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How to read this comparison

Performance numbers come from the MVPHub benchmark suite — real Lighthouse runs against production-built template instances on mobile Slow 4G. See /benchmarks for the full dataset.

SEO positioning reflects how each framework handles organic search — SSR vs CSR, hydration overhead, and how quickly Google can index pages on the first crawl.

Trade-offs are the things you'll pay for this choice. They're specific to ecommerce, not generic framework pros-and-cons.

Every template matching these profiles talks to its backend through an API layer, so you can connect Shopify, a custom API, or others without rewriting the storefront.

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