How to change the cookie time?

The default cookie time is 30 days.
If you want to change/overwrite this, please folow the the steps below:
Before you initialize your UTMSimple snippet, define handl_cookie_duration global variable to define your own cookie time.
<script>
 handl_js_license = "<your license key>"
 handl_custom_params = []
 handl_cookie_duration = 365
 var handl_js = document.createElement('script');
 handl_js.setAttribute('src','https://js.utmgrabber.com/utm.js?license='+handl_js_license);
 document.head.appendChild(handl_js);
</script>

In this example, cookies will expire after 365 days later.