diff --git a/js/_i.js b/js/_i.js
index ec434e3..1347783 100644
--- a/js/_i.js
+++ b/js/_i.js
@@ -1,7 +1,7 @@
 
 (function () {
   const me = window.document.currentScript;
-  const url = me.getAttribute('data-url');
+  const url = me.getAttribute('data-i-url');
   const iOS = !!window.navigator.platform && /iPad|iPhone|iPod/.test(window.navigator.platform);
 
   const vendor = window.navigator.vendor;
diff --git a/templates/layout.hbs b/templates/layout.hbs
index e5e281b..0184b2c 100644
--- a/templates/layout.hbs
+++ b/templates/layout.hbs
@@ -49,7 +49,7 @@
   <link href="//fonts.googleapis.com/css?family=Roboto:300,400,600" rel="stylesheet">
   <link href="//fonts.googleapis.com/css?family=Gothic+A1:300,400,600" rel="stylesheet">
   {{#block "prescripts"}}
-  <script type="text/javascript" src="{{rev '/js/global.js'}}"></script>
+  <script type="text/javascript" src="{{rev '/js/global.js'}}" data-i-url="{{#prod}}//t.{{page.domain}}{{/prod}}/i"></script>
   {{/block}}
 </head>
 <body class="{{block 'bodyClass'}}" {{block 'bodyAttributes'}}>
