diff --git a/lib/UniversalAnalytics/Tracker.py b/lib/UniversalAnalytics/Tracker.py
index 62d393ff..af39005c 100644
--- a/lib/UniversalAnalytics/Tracker.py
+++ b/lib/UniversalAnalytics/Tracker.py
@@ -373,6 +373,10 @@ for i in range(0, 200):
     Tracker.alias(safe_unicode, 'cd{0}'.format(i), 'dimension{0}'.format(i))
     Tracker.alias(int, 'cm{0}'.format(i), 'metric{0}'.format(i))
 
+# Content groups
+for i in range(0, 5):
+    Tracker.alias(safe_unicode, 'cg{0}'.format(i), 'contentGroup{0}'.format(i))
+
 # Enhanced Ecommerce
 Tracker.alias(str, 'pa')  # Product action
 Tracker.alias(str, 'tcc')  # Coupon code
diff --git a/plexpy/__init__.py b/plexpy/__init__.py
index 6ae73238..4cfa4210 100644
--- a/plexpy/__init__.py
+++ b/plexpy/__init__.py
@@ -1699,6 +1699,7 @@ def initialize_tracker():
         'dimension1': '{} {}'.format(common.PLATFORM, common.PLATFORM_VERSION),  # App Platform
         'userLanguage': plexpy.SYS_LANGUAGE,
         'documentEncoding': plexpy.SYS_ENCODING,
+        'contentGroup': 'dev' if DEV else 'production',
         'noninteractive': True
         }