{%- if site.data.analytics.google.tag-manager-id -%}

<!-- google tag manager -->
<script>
(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({"gtm.start":
new Date().getTime(),event:"gtm.js"});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!="dataLayer"?"&l="+l:"";j.async=true;j.src=
"https://www.googletagmanager.com/gtm.js?id="+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,"script","dataLayer","{{- site.data.analytics.google.tag-manager-id -}}");
</script>
<!-- end google tag manager -->

{%- endif -%}