DIGITAL SOP 036: Setting up cross-domain tracking with GTM

Last Updated / Reviewed: 01/09/2024

Execution Time: 15-30 minutes

Goal: To correctly implement and test cross-domain tracking in Google Analytics 4.

Ideal Outcome: You will be able to correctly collect all the traffic data that comes to the domains that are under your control and analyze how users interact across them.

Prerequisites or requirements:

• To follow this SOP you will need to have installed Google Tag Manager on all your domains. If you haven’t done so already and you are using WordPress you can follow SOP 004 (web version).
• You will also need to have Google Analytics running on all your domains. if you don’t have it yet, you can follow the steps described in SOP 009 (web version).

Why this is important: Cross domain tracking makes it possible to unify what would otherwise be considered as two (or more) separate sessions that occur under two (or more) of your domains.

The specific steps on this SOP apply only to Universal Google Analytics (not Google Analytics 4). If you followed other ClickMinded SOPs to create your Google Analytics account or if you set up Google Analytics before October 2020 you most likely have a Universal Analytics property.

Where this is done: Google Analytics 4

When this is done: When you add a new domain to your business that you want to track under the same Google Analytics property.

Who does this: The person responsible for website management or analytics.