diff --git a/astro.config.mjs b/astro.config.mjs
index 5d227ff..3310ed3 100644
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -10,6 +10,7 @@ import remarkMath from "remark-math"
 import { remarkReadingTime } from "./src/plugins/remark-reading-time.mjs"
 import svelte from "@astrojs/svelte"
 import swup from '@swup/astro';
+import sitemap from '@astrojs/sitemap';
 
 const oklchToHex = (str) => {
   const DEFAULT_HUE = 250
@@ -49,6 +50,7 @@ export default defineConfig({
       Image: false,
     }),
     svelte(),
+    sitemap(),
   ],
   markdown: {
     remarkPlugins: [remarkMath, remarkReadingTime],
diff --git a/package.json b/package.json
index f8694e3..1df4de0 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
   },
   "dependencies": {
     "@astrojs/check": "^0.5.9",
+    "@astrojs/sitemap": "^3.1.2",
     "@astrojs/rss": "^4.0.5",
     "@astrojs/svelte": "^5.2.0",
     "@astrojs/tailwind": "^5.1.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 077cfc2..ea08224 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,6 +8,9 @@ dependencies:
   '@astrojs/check':
     specifier: ^0.5.9
     version: 0.5.9(typescript@5.4.2)
+  '@astrojs/sitemap':
+    specifier: ^3.1.2
+    version: 3.1.2
   '@astrojs/rss':
     specifier: ^4.0.5
     version: 4.0.5
@@ -228,6 +231,12 @@ packages:
       prismjs: 1.29.0
     dev: false
 
+  /@astrojs/sitemap@3.1.2:
+    resolution: {integrity: sha512-FxOJldIl5ltZ5CNjocQxHkAO9orwHBjqtaU28o4smobp9vowS0nbGp+I9CrPxkzWdl1crSDm9vjL9tnvG1DSug==}
+    dependencies:
+      sitemap: 7.1.1
+      zod: 3.22.4
+
   /@astrojs/rss@4.0.5:
     resolution: {integrity: sha512-IyJVL6z09AQtxbgLaAwebT3T5YKe4oTHDesqydJv1KLHw+zEzzMCFuuNsEyxjiqu7df9+DDCpDXLj/WRiEUXvw==}
     dependencies:
@@ -2876,6 +2885,10 @@ packages:
       '@types/unist': 2.0.10
     dev: false
 
+  /@types/node@17.0.45:
+    resolution: {integrity: sha512-w+tIMs3rq2afQdsPJlODhoUEKzFP1ayaoyl1CcnwtIlsVe7K7bA1NGm4s3PraqTLlXnbIN84zuBlxBWo1u9BLw==}
+    dev: false
+
   /@types/node@20.11.28:
     resolution: {integrity: sha512-M/GPWVS2wLkSkNHVeLkrF2fD5Lx5UC4PxA0uZcKc6QqbIQUJyW1jVjueJYi1z8n0I5PxYrtpnPnWglE+y9A0KA==}
     dependencies:
@@ -2892,6 +2905,12 @@ packages:
       '@types/node': 20.11.28
     dev: false
 
+  /@types/sax@1.2.7:
+    resolution: {integrity: sha512-rO73L89PJxeYM3s3pPPjiPgVVcymqU490g0YO5n5By0k2Erzj6tay/4lr1CHAAU4JyOWd1rpQ8bCf6cZfHU96A==}
+    dependencies:
+      '@types/node': 20.11.28
+    dev: false
+
   /@types/sanitize-html@2.11.0:
     resolution: {integrity: sha512-7oxPGNQHXLHE48r/r/qjn7q0hlrs3kL7oZnGj0Wf/h9tj/6ibFyRkNbsDxaBBZ4XUZ0Dx5LGCyDJ04ytSofacQ==}
     dependencies:
@@ -7840,6 +7859,17 @@ packages:
     resolution: {integrity: sha512-bLGGlR1QxBcynn2d5YmDX4MGjlZvy2MRBDRNHLJ8VI6l6+9FUiyTFNJ0IveOSP0bcXgVDPRcfGqA0pjaqUpfVg==}
     dev: false
 
+  /sitemap@7.1.1:
+    resolution: {integrity: sha512-mK3aFtjz4VdJN0igpIJrinf3EO8U8mxOPsTBzSsy06UtjZQJ3YY3o3Xa7zSc5nMqcMrRwlChHZ18Kxg0caiPBg==}
+    engines: {node: '>=12.0.0', npm: '>=5.6.0'}
+    hasBin: true
+    dependencies:
+      '@types/node': 17.0.45
+      '@types/sax': 1.2.7
+      arg: 5.0.2
+      sax: 1.3.0
+    dev: false
+
   /slash@3.0.0:
     resolution: {integrity: sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==}
     engines: {node: '>=8'}
diff --git a/src/pages/robots.txt.ts b/src/pages/robots.txt.ts
new file mode 100644
index 0000000..9649a44
--- /dev/null
+++ b/src/pages/robots.txt.ts
@@ -0,0 +1,16 @@
+import type { APIRoute } from 'astro';
+
+const robotsTxt = `
+User-agent: *
+Allow: /
+
+Sitemap: ${new URL('sitemap-index.xml', import.meta.env.SITE).href}
+`.trim();
+
+export const GET: APIRoute = () => {
+  return new Response(robotsTxt, {
+    headers: {
+      'Content-Type': 'text/plain; charset=utf-8',
+    },
+  });
+};
\ No newline at end of file