Technical Definition
Pre-rendering generates static HTML for JavaScript pages before serving to crawlers or users. Methods: build-time (SSG), on-demand, or via services like Prerender.io. Helps JavaScript content be indexed. Google's recommendation is server-side rendering over dynamic rendering/pre-rendering.
Simple Explanation (ELI13)
Pre-rendering creates regular HTML versions of JavaScript pages ahead of time. This helps search engines see your content without having to run JavaScript. It's one solution for JavaScript SEO, though Google now prefers true server-side rendering.
Related Terms
JavaScript SEO, SSR, Dynamic Rendering, Crawling
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