diff --git a/nsupdate/templates/base.html b/nsupdate/templates/base.html
index d7111c3..9db86e8 100644
--- a/nsupdate/templates/base.html
+++ b/nsupdate/templates/base.html
@@ -71,6 +71,12 @@
             <div class="row">
                 <div class="col-lg-12">
                     <div id="message_box">
+                        {% if not request.is_secure %}
+                            <div class="alert alert-danger">
+                                <button type="button" class="close" data-dismiss="alert">&times;</button>
+                                Your connection is unsecure, please use our <a href="https://{{ WWW_HOST }}/">secure https site</a>.
+                            </div>
+                        {% endif %}
                         {% if messages %}
                             {% for message in messages %}
                                 <div class="alert alert-{{ message.tags }}">