{%- if site.data.analytics.google.tracking-id -%}

<!-- global site tag (gtag.js) - google analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id={{- site.data.analytics.google.tracking-id -}}"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag("js", new Date());

  gtag("config", "{{- site.data.analytics.google.tracking-id -}}");
</script>

{%- endif -%}