diff --git a/.idea/misc.xml b/.idea/misc.xml
index ba7b70587080ac2d496eba641ea6d25fda1ac287..aa4cee9594287760f8847f3624bd402c67a31e4e 100755
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7 (SchoolApps)" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.6 (school-apps)" project-jdk-type="Python SDK" />
   <component name="PyCharmProfessionalAdvertiser">
     <option name="shown" value="true" />
   </component>
diff --git a/.idea/school-apps.iml b/.idea/school-apps.iml
index 92aaf5da99a787684be08744cf91a1b60503b225..e490d464724df20945b1bac315d0025acdc9ad21 100755
--- a/.idea/school-apps.iml
+++ b/.idea/school-apps.iml
@@ -17,7 +17,7 @@
       <sourceFolder url="file://$MODULE_DIR$/schoolapps" isTestSource="false" />
       <excludeFolder url="file://$MODULE_DIR$/venv" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.7 (SchoolApps)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.6 (school-apps)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="jquery-3.2.1" level="application" />
     <orderEntry type="library" name="react.production" level="application" />
diff --git a/schoolapps/templates/partials/header.html b/schoolapps/templates/partials/header.html
index 6b062e29a370cde9c8116d04ad2b3ac16396fa38..96d5c0d8bf2a2a88a98d4641abe7ba5881a6ddbc 100755
--- a/schoolapps/templates/partials/header.html
+++ b/schoolapps/templates/partials/header.html
@@ -22,6 +22,26 @@
           href="{% static 'css/materialize.min.css' %}">
     <link rel="stylesheet" type="text/css" href="{% static 'common/style.css' %}">
     <script src="{% static 'js/jquery/jquery-3.3.1.slim.min.js' %}"></script>
+
+    <!-- Matomo -->
+    <script type="text/javascript">
+        var _paq = _paq || [];
+        /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+        _paq.push(['trackPageView']);
+        _paq.push(['enableLinkTracking']);
+        (function () {
+            var u = "//info.katharineum.de:9001/";
+            _paq.push(['setTrackerUrl', u + 'piwik.php']);
+            _paq.push(['setSiteId', '1']);
+            var d = document, g = d.createElement('script'), s = d.getElementsByTagName('script')[0];
+            g.type = 'text/javascript';
+            g.async = true;
+            g.defer = true;
+            g.src = u + 'piwik.js';
+            s.parentNode.insertBefore(g, s);
+        })();
+    </script>
+    <!-- End Matomo Code -->
 </head>
 <body>
 <header>