link rel="canonical" on the welcome page

templates/base.html

@@ -14,7 +14,7 @@
     <meta name="application-name" content="{% site_name %}">
     <link rel="icon" type="image/x-icon" href="{% static 'img/favicon.ico' %}">
     <link rel="apple-touch-icon" sizes="180x180" href="{% static 'img/apple-touch-180.png' %}">
-
+    {% block head %}{% endblock %}
     {% compress css %}
     <link rel="stylesheet" href="{% static 'css/bootstrap.css' %}" type="text/css">
 

templates/front/welcome.html

@@ -5,6 +5,11 @@
     <meta name="description" content="Cron Monitoring. Monitor nightly backups, weekly reports, cron jobs and background tasks. Receive alerts when your tasks don't run on time.">
 {% endblock %}
 
+
+{% block head %}
+    <link rel="canonical" href="{% site_root %}" />
+{% endblock %}
+
 {% block containers %}
 <div class="index-bleed">
 <div class="container">