Problem Statement
What are the performance implications of using SSR vs SSG and how do they affect user experience?
Explanation
SSG provides the fastest user experience with instant page loads since HTML is pre-generated and served from CDN edges close to users, eliminates server processing time, and costs less to scale since pages are static files. SSR requires server processing on every request adding latency measured in hundreds of milliseconds, needs server capacity that scales with traffic, and costs more to operate, but guarantees fresh content and enables personalization. The performance difference is most noticeable on slower servers or high-traffic scenarios where SSG can serve millions of requests easily while SSR requires proportional server resources. For best results, use SSG with ISR for most content to get static performance with periodic updates, reserve SSR for truly dynamic pages that must be personalized or must have real-time data, and optimize SSR pages by caching database queries, using edge functions, and implementing efficient data fetching strategies.
Practice Sets
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