diff --git a/app/page.tsx b/app/page.tsx
index e39675c..65c64f5 100644
--- a/app/page.tsx
+++ b/app/page.tsx
@@ -100,6 +100,19 @@ export default function Home() {
           </ol>
         </section>
       </main>
+      <footer className="border-t bg-card/60">
+        <div className="mx-auto flex w-full max-w-6xl items-center justify-center px-4 py-4 text-center text-xs text-muted-foreground sm:px-8 sm:text-sm">
+          運用元:
+          <a
+            href="https://neody.land/ja"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="ml-1 font-medium text-foreground underline underline-offset-4 hover:text-primary"
+          >
+            Neodyland
+          </a>
+        </div>
+      </footer>
     </div>
   );
 }