Key Takeaways
- SSG delivers the fastest possible page loads: pre-built HTML served from CDN with zero server processing.
- Incremental Static Regeneration (ISR) in Next.js updates individual pages without rebuilding the entire site.
- SSG is ideal for content that changes infrequently: marketing sites, blogs, docs, and product catalogs.
When to Use SSG vs SSR
| Scenario | Best Approach | Why |
|---|---|---|
| Blog, docs, marketing pages | SSG | Content rarely changes, maximum speed |
| E-commerce product pages | SSG + ISR | Pre-build popular pages, regenerate on change |
| Personalized dashboard | SSR or CSR | Content differs per user |
| Real-time data (stock prices) | SSR or CSR | Data changes every second |
| Large catalog (100K+ pages) | SSG + ISR | Build popular pages, generate rest on demand |
The best applications use multiple strategies. Marketing pages use SSG. User dashboards use CSR. Product pages use ISR. Next.js makes this per-page choice straightforward.
Frequently Asked Questions
Related Services
Related Terms
JAMstack
A web architecture using JavaScript, APIs, and Markup for fast, secure, and scalable websites.
Next.js
A React framework for building full-stack web applications with server-side rendering and static generation.
SSR
Server-Side Rendering. Generating HTML on the server for each request, improving SEO and initial load time.
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