Rather than paste the Gist tracking code into the header area of your website, it’s possible to add the Gist tracking snippet to your Google Tag Manager.

Google's "Tag Manager" tool is a great way to manage all of your marketing scripts and advertising pixels from one dashboard, and using one central Google script that can be placed on your website.

If you have a Google Tag Manager created and integrated with your website, follow the below instructions.

Step 1: In the left hand sidebar, click ‘Tags’.

Step 2: The ‘Tag’ screen will display the details of any tags already associated with the Google Tag profile. At the top of the list, click ‘New’.

Step 3: In the next screen, add a name for the new tag and click on the tag to begin the tag set up process.

Step 4: From the list of available tags, select the ‘Custom HTML’ option.

Step 5: In the ‘HTML’ field provided, paste the Gist tracking script.

Step 6: Scroll under the HTML code area and click on the icon in the trigger box to set up when the tag is to be triggered.
Step 7: Select ‘All Pages’ as the Trigger.

Step 8: To save the new tag, click the blue ‘Save’ button in the top right corner.

Step 9: To add the new tag to your Google Tag Manager account click the blue ‘Submit’ button.

Step 10: Add a version name and details that can be used to track when the tag was added for future reference. Click the blue ‘Publish’ button once done.

Important: Google Tag Manager tends to get suppressed by ad blockers unfortunately. Installing your Gist tracking snippet through a tag manager like Google Tag Manager has a chance of being ad blocked, due to the nature of tag managers being used for advertising scripts.