<!– Google Tag Manager –> {% if site.google-tag_key == “Google Tag Manager key goes here” or site.google-tag_key == nil or site.google-tag_key == '' %}<!– =========================================================================================
YOU NEED TO PUT THE GOOGLE TAG KEY IN THE _config.yml FILE! ============================================================================================ -->{% endif %}
{% if jekyll.environment == “publish” %}{% if site.google-tag_key != “Google Tag Manager key goes here” and site.google-tag_key != nil %} <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.google-tag_key }}');
</script> {% endif %}{%- endif -%} <!– End Google Tag Manager –>