This is pixel code tag (which is placed in all pages) is used to track pageview (#1) of all page and is a required component to track other events. Add it to Header for all of the pages of website similar to GA , Facebook Pixel
insight.js
<!-- Ants Insight script -->
<script type="text/javascript">
var _siteId="638735871";
(function(){ var w = window;
if (w.admp_event) return;
var a = window.admp_event = function() {a.queue.push(arguments);};
a.siteId = _siteId;
a.track = a;
a.queue = [];
var e=document.createElement("script");
e.type="text/javascript",e.async=!0,e.src="//st-a.anthill.vn/insight.js";
var t=document.getElementsByTagName("script")[0];
t.parentNode.insertBefore(e,t)})();
</script>
<!-- End of Ants Insight script -->