diff --git a/docs/src/pages/robots.txt.ts b/docs/src/pages/robots.txt.ts
new file mode 100644
index 0000000..68176a4
--- /dev/null
+++ b/docs/src/pages/robots.txt.ts
@@ -0,0 +1,13 @@
+import type {APIRoute} from 'astro'
+
+const getRobotsTxt = (sitemapURL: URL) => `\
+User-agent: *
+Allow: /
+
+Sitemap: ${sitemapURL.href}
+`
+
+export const GET: APIRoute = ({site}) => {
+    const sitemapURL = new URL('sitemap-index.xml', site);
+    return new Response(getRobotsTxt(sitemapURL));
+}