diff --git a/src/routes/norad.ts b/src/routes/norad.ts
index 47a701e..4cd8ee5 100644
--- a/src/routes/norad.ts
+++ b/src/routes/norad.ts
@@ -1,11 +1,22 @@
 import { Elysia } from "elysia";
 
+import limiter from "../utils/ratelimiter";
 import tleGetter from "../utils/tleGetter";
 
-const noradRoute = new Elysia({ prefix: "/norad" }).get("/:id", async ({ params }) => {
-	const noradId = parseInt(params.id, 10);
-	const tleData = await tleGetter(noradId);
-	return new Response(tleData, { headers: { "Content-Type": "text/plain", "Cache-Control": "max-age=3600" } });
-});
+const noradRoute = new Elysia({ prefix: "/norad" })
+	.use(limiter)
+	.get("/:id", async ({ params }) => {
+		const noradId = parseInt(params.id, 10);
+
+		if (isNaN(noradId) || noradId < 1 || noradId > 999999) {
+			return new Response("Invalid NORAD ID. Must be a positive integer between 1 and 999999.", {
+				status: 400,
+				headers: { "Content-Type": "text/plain" },
+			});
+		}
+
+		const tleData = await tleGetter(noradId);
+		return new Response(tleData, { headers: { "Content-Type": "text/plain", "Cache-Control": "max-age=3600" } });
+	});
 
 export default noradRoute;