Next.js SEO Mastery

In modern web apps, SEO is critical. Next.js App Router makes handling SEO meta tags straightforward using the built-in Metadata API.

How It Works

Exporting a generateMetadata function allows you to query external databases like Firestore dynamically:

export async function generateMetadata({ params }) {
  const data = await fetchFromDB(params.id);
  return {
    title: data.title,
    description: data.description,
  };
}

This runs on the server side prior to rendering the page, ensuring full-compliance and fast crawl indexation.