{% if jekyll.environment == “production” %}

{% if site.analytics_id %}
  <script async src="https://www.googletagmanager.com/gtag/js?id={{ site.analytics_id }}"></script>
  <script>
    window.dataLayer = window.dataLayer || [];
    function gtag(){dataLayer.push(arguments);}
    gtag('js', new Date());

    gtag('config', '{{ site.analytics_id }}');
  </script>
{% endif %}

{% endif %}