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Technical implementation · Technical SEO

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Definition

Prerendering is a technique in which a server pre-generates fully rendered HTML versions of JavaScript-heavy pages, making complete content — including structured data — available to crawlers without requiring JavaScript execution. Prerendering is a highly effective solution for JavaScript-rendered sites that need AI crawler accessibility. Most AI crawlers do not execute JavaScript. A site that relies on client-side rendering to display content — including schema markup injected via JavaScript — is largely invisible to AI crawlers. Prerendering solves this by serving a static HTML snapshot to bots while preserving the JavaScript-powered experience for human visitors. For Next.js sites, server-side rendering achieves the same result natively.

Client-side rendering

Server-side rendering

HTML-first development

AI Crawler

Content accessibility

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