diff --git a/evennia/game_template/server/conf/web_plugins.py b/evennia/game_template/server/conf/web_plugins.py
index 4050a82664..ec11ad7c6a 100644
--- a/evennia/game_template/server/conf/web_plugins.py
+++ b/evennia/game_template/server/conf/web_plugins.py
@@ -26,3 +26,16 @@ def at_webserver_root_creation(web_root):
 
     """
     return web_root
+
+
+def at_webproxy_root_creation(web_root):
+    """
+    This function can modify the portal proxy service.
+    Args:
+        web_root (evennia.server.webserver.Website): The Evennia
+            Website application. Use .putChild() to add new
+            subdomains that are Portal-accessible over TCP;
+            primarily for new protocol development, but suitable
+            for other shenanigans.
+    """
+    return web_root
diff --git a/evennia/server/portal/portal.py b/evennia/server/portal/portal.py
index 27270d7af0..5864134b46 100644
--- a/evennia/server/portal/portal.py
+++ b/evennia/server/portal/portal.py
@@ -95,6 +95,16 @@ INFO_DICT = {
     "webserver_internal": [],
 }
 
+try:
+    WEB_PLUGINS_MODULE = mod_import(settings.WEB_PLUGINS_MODULE)
+except ImportError:
+    WEB_PLUGINS_MODULE = None
+    INFO_DICT["errors"] = (
+        "WARNING: settings.WEB_PLUGINS_MODULE not found - "
+        "copy 'evennia/game_template/server/conf/web_plugins.py to mygame/server/conf."
+    )
+
+
 # -------------------------------------------------------------
 # Portal Service object
 # -------------------------------------------------------------
@@ -380,6 +390,17 @@ if WEBSERVER_ENABLED:
 
             web_root = Website(web_root, logPath=settings.HTTP_LOG_FILE)
             web_root.is_portal = True
+
+            if WEB_PLUGINS_MODULE:
+                try:
+                    web_root = WEB_PLUGINS_MODULE.at_webproxy_root_creation(web_root)
+                except Exception as e: # Legacy user has not added an at_webproxy_root_creation function in existing web plugins file
+                    INFO_DICT["errors"] = (
+                        "WARNING: WEB_PLUGINS_MODULE is enabled but at_webproxy_root_creation() not found - "
+                        "copy 'evennia/game_template/server/conf/web_plugins.py to mygame/server/conf."
+                    )
+
+
             proxy_service = internet.TCPServer(proxyport, web_root, interface=interface)
             proxy_service.setName("EvenniaWebProxy%s:%s" % (ifacestr, proxyport))
             PORTAL.services.addService(proxy_service)