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.
Articles about Dynamic Rendering
Read more on the Aergos blog.
The Complete Technical SEO Handbook: August 2025 Edition
This is the technical SEO reference you bookmark and come back to. Updated for August 2025, this guide covers every foundational and advanced technical discipline — from crawl budget to JavaScript rendering to log file analysis — with the depth that actually moves rankings.
Read article
10 SEO Tasks an AI Agent Cannot Actually Do (Yet)
AI agents can draft content, brainstorm keywords, and explain technical concepts. But there are real gaps between what an LLM thinks it knows and what your site actually needs. Here are 10 SEO tasks where AI still falls short — and what to use instead.
Read articleReady to close the loop?
See every term in action
Aergos tracks your AI and organic visibility across every channel, in one platform.
Not ready to talk? Audit your site free →