Dynamic Rendering.
Learn what Dynamic Rendering means in modern search and SEO.
A server-side technique that serves pre-rendered static HTML to crawlers while delivering the normal JavaScript version to users.
Dynamic rendering is a workaround for JavaScript-heavy sites: the server detects whether an incoming request comes from a crawler or a human user and responds accordingly. Crawlers receive a fully rendered HTML snapshot; users receive the standard JavaScript-driven application.
When to Use Dynamic Rendering
Google has described dynamic rendering as an acceptable interim solution for sites that cannot yet implement full SSR. It is commonly implemented with tools like Rendertron or Prerender.io sitting in front of the origin server.
Risks and Alternatives
Dynamic rendering requires maintaining a consistent pre-rendered version of every page. If the rendered snapshot differs meaningfully from the live user experience, Google may classify it as cloaking. Migrating to SSR or static generation is the preferred long-term approach.
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