A sample guide of installing Intercom in LeadPages http://leadpages.net. Uses this guide https://support.leadpages.net/hc/en-us/articles/216964338-The-HTML-Widget to install Intercom Javascript Visitor/Logged out snippet https://docs.intercom.com/install-on-your-product-or-site/quick-install/install-intercom-on-your-website-for-logged-out-visitors

intercom_with_leadpages

<script>
  var APP_ID = "YOUR_APP_ID";

 window.intercomSettings = {
    app_id: APP_ID
  };
</script>
<script>(function(){var w=window;var ic=w.Intercom;if(typeof ic==="function"){ic('reattach_activator');ic('update',intercomSettings);}else{var d=document;var i=function(){i.c(arguments)};i.q=[];i.c=function(args){i.q.push(args)};w.Intercom=i;function l(){var s=d.createElement('script');s.type='text/javascript';s.async=true;s.src='https://widget.intercom.io/widget/' + APP_ID;var x=d.getElementsByTagName('script')[0];x.parentNode.insertBefore(s,x);}if(w.attachEvent){w.attachEvent('onload',l);}else{w.addEventListener('load',l,false);}}})()</script>