diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index db9ea769..46fcb601 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -342,6 +342,12 @@ http {
         location = / {
             return 301 https://grapheneos.org/articles/grapheneos-servers;
         }
+
+        location = /.well-known/mta-sts.txt {}
+
+        location / {
+            return 404;
+        }
     }
 
     server {