diff --git a/src/routes/atom.test.ts b/src/routes/atom.test.ts
index 959cb43..07dafc8 100644
--- a/src/routes/atom.test.ts
+++ b/src/routes/atom.test.ts
@@ -119,6 +119,14 @@ describe("Atom Feed Route", () => {
       const body = await res.text();
       expect(body).toContain(`/atom/${FEED_ID}`);
     });
+
+    it("Link header advertises hub and self for WebSub discovery", async () => {
+      const res = await testApp.request(`/${FEED_ID}`, {}, mockEnv);
+      const link = res.headers.get("Link") ?? "";
+      expect(link).toContain(`rel="hub"`);
+      expect(link).toContain(`/atom/${FEED_ID}`);
+      expect(link).toContain(`rel="self"`);
+    });
   });
 
   describe("fallback config when no config in KV", () => {
diff --git a/src/routes/atom.ts b/src/routes/atom.ts
index c05bea5..993976f 100644
--- a/src/routes/atom.ts
+++ b/src/routes/atom.ts
@@ -51,11 +51,17 @@ export async function handle(c: Context): Promise<Response> {
     const baseUrl = `https://${env.DOMAIN}`;
     const atomXml = generateAtomFeed(feedConfig, emailsData, baseUrl, feedId);
 
+    const linkHeader = [
+      `<${baseUrl}/hub>; rel="hub"`,
+      `<${baseUrl}/atom/${feedId}>; rel="self"`,
+    ].join(", ");
+
     return new Response(atomXml, {
       status: 200,
       headers: {
         "Content-Type": "application/atom+xml",
         "Cache-Control": "max-age=1800",
+        Link: linkHeader,
       },
     });
   } catch (error) {