diff --git a/modules/hedgedoc.nix b/modules/hedgedoc.nix
index 3061aba..5a9a217 100644
--- a/modules/hedgedoc.nix
+++ b/modules/hedgedoc.nix
@@ -74,6 +74,12 @@ in
             proxyPass = "http://[::1]:${toString config.services.hedgedoc.settings.port}";
             proxyWebsockets = true;
           };
+          locations."/robots.txt" = {
+            extraConfig = ''
+              add_header  Content-Type  text/plain;
+              return 200 "User-agent: *\nDisallow: /\n";
+            '';
+          };
         };
       };
     };
diff --git a/modules/wiki/fsr.nix b/modules/wiki/fsr.nix
index f8fe604..b078cf1 100644
--- a/modules/wiki/fsr.nix
+++ b/modules/wiki/fsr.nix
@@ -104,6 +104,12 @@ in
       virtualHosts.${domain} = {
         enableACME = true;
         forceSSL = true;
+        locations."/robots.txt" = {
+          extraConfig = ''
+            add_header  Content-Type  text/plain;
+            return 200 "User-agent: *\nDisallow: /\n";
+          '';
+        };
         locations."/" = {
           proxyPass = "http://127.0.0.1:${toString listenPort}";
           proxyWebsockets = true;