diff --git a/src/pages/api/newsletter/subscribe.ts b/src/pages/api/newsletter/subscribe.ts
index 3f22919..f9ec786 100644
--- a/src/pages/api/newsletter/subscribe.ts
+++ b/src/pages/api/newsletter/subscribe.ts
@@ -83,9 +83,9 @@ export const POST: APIRoute = async ({ request, locals, url }) => {
   }
   const email = normalizeEmail(emailRaw);
 
-  const turnstileSecret =
-    readEnv('NEWSLETTER_TURNSTILE_SECRET_KEY', runtimeEnv) ||
-    readEnv('CONTACT_TURNSTILE_SECRET_KEY', runtimeEnv);
+  // Turnstile solo se configurato esplicitamente per la newsletter.
+  // Non riusare CONTACT_TURNSTILE_SECRET_KEY: il form footer non ha il widget.
+  const turnstileSecret = readEnv('NEWSLETTER_TURNSTILE_SECRET_KEY', runtimeEnv);
   if (turnstileSecret) {
     const turnstileToken = required(form.get('cf-turnstile-response'));
     const isHuman = await verifyTurnstile(