Inserting Tags in the Head Section Using Google Tag Manager

GOOGLE TAG MANAGER (GTM)

By default, GTM injects tags either right after the opening <body> tag or just before the closing </body> tag. The exact placement typically depends on where you have inserted the GTM container code in your site's source code. This behavior occurs because most scripts and tags can operate effectively within the <body> and don't necessarily need to be placed in the <head>.

Steps to Insert Custom HTML Tags with GTM

Create a custom HTML TAG and attach a trigger

<meta name="google-site-verification" content="This was created in HTML format">

When we validate this TAG on the website, we notice that the tag got injected in the BODY section of the HTML.

I created a demo website to demonstrate this.

While GTM doesn’t directly offer a built-in functionality to position tags in the head, we can achieve this using a clever JavaScript workaround.

Steps to forcefully Insert Custom HTML Tags in HEAD with GTM

<script type="text/javascript">
var metaTag = document.createElement('meta');
metaTag.name =
"google-site-verification";
metaTag.content =
"Tag tag was created in Javascript format";
document.getElementsByTagName(
'head')[0].appendChild(metaTag);
</script>

When we validate this TAG on the website, we notice that this time tag got injected in the HEAD section of the HTML

Need Expert Help Mastering Tag Injection in GTM?

At Shiftlytic, we specialize in Tag Management and Digital Analytics architecture, helping brands like yours maintain a clean, high-performance DOM while ensuring critical scripts land exactly where they need to—even when the platform’s default behavior tries to force them elsewhere. We understand that "clever JavaScript workarounds" for meta-tag validation or SEO scripts are often necessary because GTM doesn’t natively offer a built-in toggle for <head> placement.

Don’t let the technical complexity of DOM manipulation, race conditions during tag firing, or GTM's default <body> injection stall your innovation. Ensuring your site verification and tracking tags are architecturally sound shouldn't be a guessing game.

Contact us today to schedule one free consultation and ensure your Tag Management strategy is accurate, scalable, and fully optimized. Let’s turn your data into a competitive advantage together.