Technical Definition
Dynamic rendering serves pre-rendered HTML to crawlers while serving client-rendered content to users. Was a workaround for JavaScript SEO. Google deprecated recommendation in 2024, preferring SSR or hybrid rendering. If still using: detect crawlers via user-agent, serve pre-rendered version, avoid cloaking concerns with identical content.
Simple Explanation (ELI13)
Dynamic rendering means showing Google a pre-rendered version of your JavaScript site while showing users the regular JavaScript version. Google used to recommend this but now prefers server-side rendering instead. If you're building something new, use SSR rather than dynamic rendering.
Related Terms
JavaScript SEO, SSR, Crawling, Pre-rendering
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