1. Server Components vs Client Components in SSR Indexing
In Next.js App Router, components default to React Server Components (RSC). This is a game-changer for search engine indexing: raw HTML containing your complete content payload is pre-rendered on the server and delivered directly to search crawlers without requiring a JavaScript execution pass.
// Exemple: Composant Serveur restituant la charge utile SEO
export default async function Page() {
const data = await getSeoPayload();
return <article><h1>{data.headline}</h1></article>;
}2. Dynamic Metadata & OpenGraph Optimization
Next.js provides the built-in Metadata API. Always implement static or dynamic metadata objects in your page.tsx or layout.tsx files to control titles, Open Graph tags, canonical URLs, and Twitter cards.
3. Injecting Nested JSON-LD Schema Graphs
To communicate unambiguous entity signals to search crawlers and AI search systems, inject JSON-LD schema using a raw script tag in your layout or page:
<script
type="application/ld+json"
dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLdGraph) }}
/>