<!– Google Tag Manager (noscript) –>

{% 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 %}
<noscript>
  <iframe src="https://www.googletagmanager.com/ns.html?id={{ site.google-tag_key }}" height="0" width="0" style="display:none;visibility:hidden"></iframe>
</noscript>{% endif %}{%- endif -%}
<!-- End Google Tag Manager (noscript) -->