XML sitemap includes all indexable pages; noindex pages excluded

Pages missing from sitemap.xml rely entirely on internal link discovery — newly launched products, fresh blog posts, and deep category pages can sit unindexed for weeks. Conversely, including noindex pages in the sitemap sends contradictory signals that Google Search Console flags as Submitted URL marked noindex errors, which erode trust in the entire sitemap and slow crawl scheduling for legitimate URLs.

Generate the sitemap dynamically from the same data source that produces your routes so drift is impossible. Implement in app/sitemap.ts:

export default async function sitemap() {
  const products = await db.product.findMany({ where: { published: true } })
  return products.map(p => ({ url: `https://yoursite.com/products/${p.slug}`, lastModified: p.updatedAt }))
}