diff --git a/website/source/layouts/_footer.erb b/website/source/layouts/_footer.erb
index 449651c60..2f91bc893 100644
--- a/website/source/layouts/_footer.erb
+++ b/website/source/layouts/_footer.erb
@@ -30,6 +30,24 @@
   ga('send', 'pageview');
 </script>
 
+<script type="text/javascript">
+adroll_adv_id = "6QAAFJDIWBG3DJBDRJ7BEX";
+adroll_pix_id = "PYT5HSNKNRDS7LMUR5B6YG";
+(function () {
+var oldonload = window.onload;
+window.onload = function(){
+   __adroll_loaded=true;
+   var scr = document.createElement("script");
+   var host = (("https:" == document.location.protocol) ? "https://s.adroll.com" : "http://a.adroll.com");
+   scr.setAttribute('async', 'true');
+   scr.type = "text/javascript";
+   scr.src = host + "/j/roundtrip.js";
+   ((document.getElementsByTagName('head') || [null])[0] ||
+    document.getElementsByTagName('script')[0].parentNode).appendChild(scr);
+   if(oldonload){oldonload()}};
+}());
+</script>
+
 <%= javascript_include_tag "application" %>
 
 </body>