Choose CSR for single-page applications (SPAs) that require highly interactive, dynamic user experiences.
Ideal when:
SEO is not a primary concern and you want fast, interactive, and personalized experiences with real-time updates. Great for dashboards, internal tools, or apps needing scalable, dynamic content.
Use Next.js App Router for modern, flexible routing and layouts with React Server Components.
Ideal when:
You want to leverage React Server Components, streaming, and granular data fetching for SEO-friendly, high-performance sites using the latest Next.js features.