diff --git a/project/src/app/sitemap.ts b/project/src/app/sitemap.ts
new file mode 100644
index 0000000..6d4bcb9
--- /dev/null
+++ b/project/src/app/sitemap.ts
@@ -0,0 +1,39 @@
+import type { MetadataRoute } from "next";
+import { roadmapRegistry, getAllRoadmapTopicParams } from "../data/roadmaps";
+
+export default function sitemap(): MetadataRoute.Sitemap {
+  const baseUrl = process.env.NEXT_PUBLIC_SITE_URL ?? "https://demon-tech-roadmap.vercel.app";
+
+  const staticRoutes: MetadataRoute.Sitemap = [
+    { url: `${baseUrl}/`, lastModified: new Date(), changeFrequency: "weekly", priority: 1 },
+    { url: `${baseUrl}/docs/quick-start`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/how-roadmaps-work`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/learning-paths`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/all-roadmaps`, lastModified: new Date(), changeFrequency: "weekly", priority: 0.9 },
+    { url: `${baseUrl}/docs/by-category`, lastModified: new Date(), changeFrequency: "weekly", priority: 0.8 },
+    { url: `${baseUrl}/docs/project-ideas`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/study-guide`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/best-practices`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/common-questions`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/contributing`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/about-demontech`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/our-mission`, lastModified: new Date(), changeFrequency: "monthly", priority: 0.8 },
+    { url: `${baseUrl}/docs/changelog`, lastModified: new Date(), changeFrequency: "weekly", priority: 0.8 },
+  ];
+
+  const roadmapRoutes: MetadataRoute.Sitemap = Object.keys(roadmapRegistry).map((slug) => ({
+    url: `${baseUrl}/roadmaps/${slug}`,
+    lastModified: new Date(),
+    changeFrequency: "weekly",
+    priority: 0.9,
+  }));
+
+  const topicRoutes: MetadataRoute.Sitemap = getAllRoadmapTopicParams().map(({ roadmapSlug, topicId }) => ({
+    url: `${baseUrl}/roadmaps/${roadmapSlug}/topics/${topicId}`,
+    lastModified: new Date(),
+    changeFrequency: "monthly",
+    priority: 0.7,
+  }));
+
+  return [...staticRoutes, ...roadmapRoutes, ...topicRoutes];
+}