Insert this JS-code snippet into the <head>
section of all public HTML pages of your website:
<script> (function(){ window.personaclick=window.personaclick||function(){(window.personaclick.q=window.personaclick.q||[]).push(arguments)}; var c="//cdn.personaclick.com",v="/v3.js",s={link:[{href:c,rel:"dns-prefetch"},{href:c,rel:"preconnect"},{href:c+v,rel:"preload",as:"script"}],script:[{src:c+v,async:""}]}; Object.keys(s).forEach(function(c){s[c].forEach(function(d){var e=document.createElement(c),a;for(a in d)e.setAttribute(a,d[a]);document.head.appendChild(e)})}); })(); personaclick("init", "%YOUR_STORE_KEY%", success, error); </script>