# Prerendering & Server-Side Rendering — SEO for Developers: Technical SEO and Core Web Vitals

Source: https://www.skillbyai.com/en/seo-developers/seo-prerendering-ssr

> Compare prerendering and server-side rendering as two ways to make JavaScript-heavy sites crawlable and fast.

## Static prerendering

**Prerendering** means generating the full HTML for each page at build time (not request time). Every route has a complete `.html` file on disk. Google sees full content immediately. Best for static or slowly-changing content.

## Server-side rendering

**Server-side rendering (SSR)** means the server renders HTML when a request arrives. The browser receives complete HTML with content already filled in. Google sees the final HTML immediately. Slower than prerendering but works for dynamic content.

## Use Next.js or Nuxt

Modern frameworks like Next.js (React) and Nuxt (Vue) handle SSR and prerendering for you. They're designed with SEO in mind and make it easy to serve crawl-friendly HTML.