What is prerendering, and when do I need it?

Prerendering converts your dynamic React app into static HTML pages at build time, so crawlers see fully-rendered content instead of empty divs. It's essential for SEO since Lovable uses client-side rendering (CSR) by default. Enable prerendering if you have static or semi-static pages (blogs, marketing sites). For fully dynamic apps (dashboards, real-time data), CSR is fine.