SSR (Server-Side Rendering)

RU: SSR (Server-Side Rendering)

A rendering strategy where the server generates a complete HTML document for each incoming request, so the browser receives meaningful markup before any JavaScript runs. This improves TTFB-to-visible-content and is better for SEO than client-only rendering, but it places per-request compute on the server and can increase TTFB under load. React 18 streaming SSR with Suspense mitigates this by flushing HTML progressively.