Web performance is changing rapidly. With the introduction of React Server Components, we have shifted the paradigm from client-heavy bundles to server-first rendering.

Why it matters

Core Web Vitals are now a ranking factor for Google. But beyond SEO, performance is about user experience. A faster site means better conversion and retention.

Key Concepts

1. Streaming SSR: Delivering HTML as it's generated.
2. Partial Prerendering: Combining static and dynamic content.
3. Resumability: Eliminating hydration (Qwik approach, influencing React).