diff --git a/astro.config.mjs b/astro.config.mjs
index 39e8ffc..0c6eb9d 100644
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -11,9 +11,11 @@ import mdx from '@astrojs/mdx';
 import icon from 'astro-icon';
 import pagefind from "astro-pagefind";
 
+import sitemap from '@astrojs/sitemap';
+
 // https://astro.build/config
 export default defineConfig({
-  integrations: [tailwind(), mdx(), icon(), pagefind()],
+  integrations: [tailwind(), mdx(), icon(), pagefind(), sitemap()],
   site: 'https://nfdi4plants.github.io',
   base: '/arc-website/', // will kill pagefind integration without trailing slash
   markdown: {
diff --git a/package-lock.json b/package-lock.json
index d55d127..1108580 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "dependencies": {
         "@astrojs/check": "^0.9.3",
         "@astrojs/mdx": "^3.1.5",
+        "@astrojs/sitemap": "^3.1.6",
         "@astrojs/tailwind": "^5.1.0",
         "@iconify-json/mdi": "^1.2.0",
         "@tailwindcss/typography": "^0.5.15",
@@ -204,6 +205,17 @@
         "node": "^18.17.1 || ^20.3.0 || >=21.0.0"
       }
     },
+    "node_modules/@astrojs/sitemap": {
+      "version": "3.1.6",
+      "resolved": "https://registry.npmjs.org/@astrojs/sitemap/-/sitemap-3.1.6.tgz",
+      "integrity": "sha512-1Qp2NvAzVImqA6y+LubKi1DVhve/hXXgFvB0szxiipzh7BvtuKe4oJJ9dXSqaubaTkt4nMa6dv6RCCAYeB6xaQ==",
+      "license": "MIT",
+      "dependencies": {
+        "sitemap": "^7.1.2",
+        "stream-replace-string": "^2.0.0",
+        "zod": "^3.23.8"
+      }
+    },
     "node_modules/@astrojs/tailwind": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/@astrojs/tailwind/-/tailwind-5.1.1.tgz",
@@ -1954,6 +1966,15 @@
         "undici-types": "~6.19.2"
       }
     },
+    "node_modules/@types/sax": {
+      "version": "1.2.7",
+      "resolved": "https://registry.npmjs.org/@types/sax/-/sax-1.2.7.tgz",
+      "integrity": "sha512-rO73L89PJxeYM3s3pPPjiPgVVcymqU490g0YO5n5By0k2Erzj6tay/4lr1CHAAU4JyOWd1rpQ8bCf6cZfHU96A==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/tar": {
       "version": "6.1.13",
       "resolved": "https://registry.npmjs.org/@types/tar/-/tar-6.1.13.tgz",
@@ -6952,6 +6973,12 @@
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
+    "node_modules/sax": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/sax/-/sax-1.4.1.tgz",
+      "integrity": "sha512-+aWOz7yVScEGoKNd4PA10LZ8sk0A/z5+nXQG5giUO5rprX9jgYsTdov9qCchZiPIZezbZH+jRut8nPodFAX4Jg==",
+      "license": "ISC"
+    },
     "node_modules/section-matter": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/section-matter/-/section-matter-1.0.0.tgz",
@@ -7084,6 +7111,31 @@
       "resolved": "https://registry.npmjs.org/sisteransi/-/sisteransi-1.0.5.tgz",
       "integrity": "sha512-bLGGlR1QxBcynn2d5YmDX4MGjlZvy2MRBDRNHLJ8VI6l6+9FUiyTFNJ0IveOSP0bcXgVDPRcfGqA0pjaqUpfVg=="
     },
+    "node_modules/sitemap": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/sitemap/-/sitemap-7.1.2.tgz",
+      "integrity": "sha512-ARCqzHJ0p4gWt+j7NlU5eDlIO9+Rkr/JhPFZKKQ1l5GCus7rJH4UdrlVAh0xC/gDS/Qir2UMxqYNHtsKr2rpCw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "^17.0.5",
+        "@types/sax": "^1.2.1",
+        "arg": "^5.0.0",
+        "sax": "^1.2.4"
+      },
+      "bin": {
+        "sitemap": "dist/cli.js"
+      },
+      "engines": {
+        "node": ">=12.0.0",
+        "npm": ">=5.6.0"
+      }
+    },
+    "node_modules/sitemap/node_modules/@types/node": {
+      "version": "17.0.45",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-17.0.45.tgz",
+      "integrity": "sha512-w+tIMs3rq2afQdsPJlODhoUEKzFP1ayaoyl1CcnwtIlsVe7K7bA1NGm4s3PraqTLlXnbIN84zuBlxBWo1u9BLw==",
+      "license": "MIT"
+    },
     "node_modules/source-map": {
       "version": "0.7.4",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.7.4.tgz",
@@ -7125,6 +7177,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/stream-replace-string": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/stream-replace-string/-/stream-replace-string-2.0.0.tgz",
+      "integrity": "sha512-TlnjJ1C0QrmxRNrON00JvaFFlNh5TTG00APw23j74ET7gkQpTASi6/L2fuiav8pzK715HXtUeClpBTw2NPSn6w==",
+      "license": "MIT"
+    },
     "node_modules/string-width": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-7.2.0.tgz",
diff --git a/package.json b/package.json
index a0a8a0a..274be91 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
   "dependencies": {
     "@astrojs/check": "^0.9.3",
     "@astrojs/mdx": "^3.1.5",
+    "@astrojs/sitemap": "^3.1.6",
     "@astrojs/tailwind": "^5.1.0",
     "@iconify-json/mdi": "^1.2.0",
     "@tailwindcss/typography": "^0.5.15",
diff --git a/src/pages/robots.txt.ts b/src/pages/robots.txt.ts
new file mode 100644
index 0000000..bcc5259
--- /dev/null
+++ b/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));
+};
\ No newline at end of file