What is the difference between client-side and server-side rendering?

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Accepted Answer

Server-side rendering builds the finished page on the server and sends ready-to-view HTML, so it appears fast and search engines read it easily. Client-side rendering sends a mostly empty page plus JavaScript that builds the content in the browser. Each has trade-offs in speed, SEO, and interactivity.

Server-side is better for first-load speed and for SEO, because the content is there immediately. Client-side can feel more app-like once loaded, since updates happen without full page reloads, but the initial blank state can hurt both perceived speed and search visibility.

Modern frameworks blend the two: render the first view on the server for speed and SEO, then let the browser take over for interactivity. This hybrid approach is the default in tools like Next.js as of 2026, and it's usually the right pattern for content-plus-interactivity sites.

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