If you decide to add our script via GTM, please set the Marketo Measure script to the highest priority in your firing order and ensure there are no synchronous scripts in front of the Marketo Measure tag in order to reduce any effects from GTM latency.
Please use this support article by Google to learn more.
Open GTM and add the Marketo Measure script on your website container. Be sure to select Custom HTML tag.
Use the Marketo Measure script below and incorporate it in your container.
+Add a Firing Rule so that you can tell Google to load our snippet on All Pages.
Go to the Container Draft Overview section on the left. Click the button to create a new version of your container and publish the changes.