If you're planning to build a corporate website, you face a choice: React (SPA) or Next.js (SSR/SSG)? Let's break it down objectively.
React (SPA)
Pros
- Fast page-to-page navigation
- Simple architecture for dashboards and CRMs
- Massive library ecosystem
Cons
- Poor SEO indexing
- Slow initial load
- Difficulties with social media meta tags
Next.js
Pros
- Excellent SEO — HTML generated on server
- Instant loading — SSG pages in milliseconds
- Core Web Vitals — built-in optimization
- App Router + Server Components — 40–60% less client JS
Comparison
| Criteria | React SPA | Next.js |
|---|---|---|
| SEO | Poor | Excellent |
| Load speed | Average | Excellent |
| Core Web Vitals | Average | Excellent |
| Best for | Internal apps | Public sites, e-commerce |
Our Experience at CoreX AI
We use Next.js 15 with App Router. Results:
- Lighthouse Performance: 95–100 points
- FCP: under 1 second
- Full Google indexing within 3–5 days
- 60% organic traffic growth in 3 months
Conclusion
For public websites — Next.js is the clear winner. For internal apps — React SPA is simpler and cheaper. Consult with our team — we'll find the optimal stack.