since3-website/app/robots.ts

import type { MetadataRoute } from "next";

import { site } from "@/modules/shared/config/site";

// The whole site is public marketing content, so crawlers get full access.
export default function robots(): MetadataRoute.Robots {
  return {
    rules: {
      userAgent: "*",
      allow: "/",
    },
    sitemap: `${site.url}/sitemap.xml`,
  };
}