diff --git a/f7/__init__.py b/f7/__init__.py
index 04574a7..3529911 100644
--- a/f7/__init__.py
+++ b/f7/__init__.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 #!/usr/bin/python
 
+import os
 from .app import instance as i_app
 from .timer import instance as i_timer
 from .udplog import instance as i_udplog
@@ -8,3 +9,6 @@ from .udplog import instance as i_udplog
 app = i_app()
 udplog = i_udplog()
 timer = i_timer()
+
+def isOnlineEnv():
+    return not os.getenv("SERVER_ENV");