Technical Definition
Rendering is the process of executing JavaScript and generating the final HTML/DOM. For SEO: Google renders pages to see JavaScript-generated content, but with delays (two-wave indexing) and resource limitations. Server-side rendering ensures content is immediately available. Check rendering via Google Search Console's URL Inspection tool. Critical for JavaScript-heavy sites.
Simple Explanation (ELI13)
Rendering is when a browser (or Google) runs JavaScript code to build the final page. Some websites don't have real content in their HTML; JavaScript creates it. Google can render pages, but it takes extra time and resources. If your content depends on JavaScript, make sure Google can actually see it.
Related Terms
JavaScript SEO, Server-Side Rendering, DOM, Two-Wave Indexing
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