3300.me

ga

// document

https://developers.google.com/analytics/devguides/collection/analyticsjs/?hl=ja

// html (under head start tag)

<!--ga-->
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', '{GA_TRACKING_ID}', 'auto');
ga('send', 'pageview');
</script>
<!--/ga-->

code_popup

// html (dataset)

<a href="~" data-ga="{label}">~</a>

// js

(function() {
  document.addEventListener('click', (e) => {
    if (e.target.tagName !== 'A' || !e.target.dataset.ga) {
      return;
    }
    e.preventDefault();
    window.ga('send', 'event', location.href, e.target.href, e.target.dataset.ga, {
      hitCallback: () => {
        location.href = e.target.href;
      },
    });
  }, false);
})();

code_popup