diff --git a/app/.well-known/nostr.json/route.js b/app/.well-known/nostr.json/route.js
new file mode 100644
index 0000000..f2b380a
--- /dev/null
+++ b/app/.well-known/nostr.json/route.js
@@ -0,0 +1,32 @@
+// NIP-05 identifier endpoint — https://github.com/nostr-protocol/nips/blob/master/05.md
+//
+// Served as a dynamic route (not a static public/ file) so we honor the
+// `?name=<local-part>` query and return only the requested mapping, instead of
+// enumerating every handle on the domain.
+
+const PUBKEY =
+  '3e294d2fd339bb16a5403a86e3664947dd408c4d87a0066524f8a573ae53ca8e'
+
+// name -> hex pubkey (lowercase). `_` is the root identifier: sepehr@zignostr.com
+// with no local part resolves to it per NIP-05.
+const NAMES = {
+  _: PUBKEY,
+  sepehr: PUBKEY,
+}
+
+// The response depends on the query string, so never prerender or cache it.
+export const dynamic = 'force-dynamic'
+
+export function GET(request) {
+  const name = new URL(request.url).searchParams.get('name')
+  const pubkey = name ? NAMES[name] : undefined
+
+  return Response.json(
+    { names: pubkey ? { [name]: pubkey } : {} },
+    {
+      // NIP-05 requires the file to be readable cross-origin so web clients can
+      // verify name@domain -> pubkey.
+      headers: { 'Access-Control-Allow-Origin': '*' },
+    },
+  )
+}
diff --git a/next.config.mjs b/next.config.mjs
index d80eae5..c047ec4 100644
--- a/next.config.mjs
+++ b/next.config.mjs
@@ -8,14 +8,6 @@ export default withNextra({
   reactStrictMode: true,
   // No metadataBase / hard-coded site URL here on purpose: the public domain is
   // configured in the deploy dashboard (Vercel), never committed to this repo.
-  async headers() {
-    return [
-      {
-        // NIP-05 requires the identifier file to be readable cross-origin so
-        // web clients can verify name@domain -> pubkey mappings.
-        source: '/.well-known/nostr.json',
-        headers: [{ key: 'Access-Control-Allow-Origin', value: '*' }],
-      },
-    ]
-  },
+  // The NIP-05 CORS header now lives in app/.well-known/nostr.json/route.js,
+  // alongside the handler that builds the response.
 })
diff --git a/public/.well-known/nostr.json b/public/.well-known/nostr.json
deleted file mode 100644
index 656b30c..0000000
--- a/public/.well-known/nostr.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "names": {
-    "_": "3e294d2fd339bb16a5403a86e3664947dd408c4d87a0066524f8a573ae53ca8e",
-    "sepehr": "3e294d2fd339bb16a5403a86e3664947dd408c4d87a0066524f8a573ae53ca8e"
-  }
-}