This topic is for historical purposes only as a reference for anyone still using Universal Analytics with Google tag Manager. It will be deleted sometime after Google ceases sending UA data to GTM, in July 2023.
The documentation for the current setup can be found at Set up Google Tag Manager for Analytics
This topic will show you how to use Google Universal Analytics through Google Tag Manager. After you’re done, the Google Tag Manager API will be running on your Discourse site, so you could in theory send arbitrary events to any service that integrates with Tag Manager. Analytics is only the beginning.
For security reasons, all up to date Discourse installs have a Content Security Policy that blocks all non-Discourse scripts. This means that if you add external scripts to your GTM integration, you might have to allowlist their domains in order for the scripts to be allowed to run.
For example, if you have enabled Advertising Features or AdWords integration, you would need to add
https://stats.g.doubleclick.net
https://www.google.com
to the
content security policy script src
site setting.If you have your own custom scripts in Custom HTML tags, you can follow this guide to allow them to run in Discourse.
Universal Analytics
The first thing you’ll need is to create an Analytics account. If you’re signed in with a Google account, then simply visiting https://analytics.google.com will guide you through creating an account.
Once you have a new account, create a property.
Choose “Website” as the type of app, and fill in the rest of the fields for your Discourse site. At the end, you’ll get a tracking id, which looks like UA-12345678-1. Keep it handy because you’ll need to give it to Tag Manager.
If you don’t see a Tracking ID, you have a Google Analytics 4 property. (Google Analytics 4 properties do not have a Tracking ID.) You will need to create a Universal Analytics property instead. Follow these instructions carefully, because the Universal Analytics property option is hidden under Show advanced options . Once you have created a Universal Analytics property, you can follow the instructions above to find your “UA-” Tracking ID.
Tag Manager
Visit https://tagmanager.google.com and let Google set you up. Once you’re in, you’ll be prompted to create your first “Account” and “Container”. When asked where the container will be used, choose “Web”.
Once your container is created, we need to hook up some events from the tag manager api to Google Analytics.
Variables
Go to the Variables tab on the left. Click the “New” button in the User-Defined Variables section at the bottom. We’ll be creating two variables.
Title: DL - page title
Type: Data Layer Variable
Data Layer Variable Name: page.title
Data Layer Version: 2
Title: DL - page url
Type: Data Layer Variable
Data Layer Variable Name: page.url
Data Layer Version: 2
Here’s an example:
Triggers
Now let’s create a trigger that does something when those variables arrive from the API. Click the “Triggers” tab on the left and click New. Choose “Page View” as the type, click save, and name the trigger virtualPageView
.
Your trigger should look like this once it’s been saved.
Tags
Finally, we’re ready to add Analytics. Click the Tags tab on the left and create a new tag.
- Tag Type: choose Google Analytics: Universal Analytics
- Configure Tag:
- Track Type: choose Page View
- Google Analytics Settings: choose New Variable…
- Variable Configuration:
- Tracking ID: enter your tracking id from Universal Analytics (UA-xxxxxxxx-x)
- Cookie Domain: Add these three fields exactly as shown:
- name:
cookieDomain
, value:auto
- name:
title
, value:{{DL - page title}}
(can be chosen from a dropdown) - name:
page
, value:{{DL - page url}}
- name:
- Triggering:
- Choose
virtualPageView
- Choose
- Save and Name Tag
Your Tag should look similar to this when finished:
Publish
None of this work is live until you click the Publish button on the top right of the page. It will be red if there are changes that haven’t been published.
If your Discourse site is reporting 404 errors from googletagmanager.com, it’s probably because you didn’t publish your changes.
Discourse
GTM is waiting for data, so let’s add it to our Discourse site. Go to the Settings tab of admin and search for gtm container id
and enter your tag manager id. It should always be displayed on the top navigation bar of the tag manager UI.
Be sure to remove your Analytics tracking code from the
ga universal tracking code
andga tracking code
settings.
Reload the page and data should be flowing through GTM to Analytics. Watch the real-time content view to see traffic and url’s of your site visitors.
More?
Now that you have pageview data going into tag manager, you could add more Tags that receive the events. Google DFP, AdWords, LinkedIn, and others are in the list.
Related Links:
- Use nonces in Google Tag Manager scripts
- Push custom events to Google Tag Manager and Analytics
- Add Google Auto Ads to Discourse via Google Tag Manager
Last Reviewed by @MarkDoerr on 2023-02-09T01:10:00Z