diff --git a/plugins/disabled-NoNewSites/NoNewSites.py b/plugins/disabled-NoNewSites/NoNewSites.py
new file mode 100644
index 00000000..9bef8753
--- /dev/null
+++ b/plugins/disabled-NoNewSites/NoNewSites.py
@@ -0,0 +1,39 @@
+##
+##  Copyright (c) 2022 caryoscelus
+##
+##  zeronet-conservancy is free software: you can redistribute it and/or modify it under the
+##  terms of the GNU General Public License as published by the Free Software
+##  Foundation, either version 3 of the License, or (at your option) any later version.
+##
+##  zeronet-conservancy is distributed in the hope that it will be useful, but
+##  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+##  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+##  details.
+##
+## You should have received a copy of the GNU General Public License along with
+## zeronet-conservancy. If not, see <https://www.gnu.org/licenses/>.
+##
+
+import re
+from Plugin import PluginManager
+
+# based on the code from Multiuser plugin
+@PluginManager.registerTo("UiRequest")
+class NoNewSites(object):
+    def __init__(self, *args, **kwargs):
+        return super(NoNewSites, self).__init__(*args, **kwargs)
+    def actionWrapper(self, path, extra_headers=None):
+        match = re.match("/(media/)?(?P<address>[A-Za-z0-9\._-]+)(?P<inner_path>/.*|$)", path)
+        if not match:
+            self.sendHeader(500)
+            return self.formatError("Plugin error", "No match for address found")
+
+        addr = match.group("address")
+
+        if not self.server.site_manager.get(addr):
+            self.sendHeader(404)
+            return self.formatError("Not Found", "Adding new sites disabled", details=False)
+        return super(NoNewSites, self).actionWrapper(path, extra_headers)
+
+    # def parsePath(self, path):
+        # return super(NoNewSites, self).parsePath(path)
diff --git a/plugins/disabled-NoNewSites/__init__.py b/plugins/disabled-NoNewSites/__init__.py
new file mode 100644
index 00000000..1781711b
--- /dev/null
+++ b/plugins/disabled-NoNewSites/__init__.py
@@ -0,0 +1 @@
+from . import NoNewSites
diff --git a/plugins/disabled-NoNewSites/plugin_info.json b/plugins/disabled-NoNewSites/plugin_info.json
new file mode 100644
index 00000000..c924d126
--- /dev/null
+++ b/plugins/disabled-NoNewSites/plugin_info.json
@@ -0,0 +1,5 @@
+{
+	"name": "NoNewSites",
+	"description": "disables adding new sites (e.g. for proxies)",
+	"default": "disabled"
+}