Make your content visible without JavaScript

Open your site, then "View source" (the raw HTML the server sends, before JavaScript runs). If you mostly see an empty <div id="root"></div> and your real text only appears after scripts execute, your content is client-rendered. Browsers run that JS — but many AI crawlers don't. To them, your page is blank, no matter how polished it looks to a human.

The fix: send real HTML from the server

You want your main content present in that initial HTML response. Three common approaches:

• Static generation (SSG) — pre-build pages to HTML at deploy time. Best for content that doesn't change per request (marketing, docs, blogs). Frameworks: Next.js, Astro, Hugo, Eleventy, SvelteKit.
• Server-side rendering (SSR) — render HTML on each request. Best for dynamic/personalized pages. Next.js, Nuxt, Remix, SvelteKit.
• Prerendering — keep your SPA but serve a pre-rendered HTML snapshot to bots (e.g. Prerender.io, or your framework's static export for key routes). The pragmatic retrofit when you can't rewrite the app.

If you're on a plain SPA today

The fastest win is to move your highest-value pages (homepage, key landing/product/docs pages) to static generation, even if the rest of the app stays client-rendered. Those are the pages LLMs most need to read. At minimum, ensure the homepage ships meaningful text in its initial HTML.