Google Analytics Cross Domain Tracking with Google Tag Manager
There are already plenty of resources online that explain how to implement Google Analytics Cross-domain tracking. However, it feels that the questions of this topic are still one of the most popular ones in the community (source of this statement: my gut). And that’s no surprise. Sometimes people just blindly follow guides without properly understanding WHY this or that was made. In other cases, they do understand the basic principles but are not aware that their case/project has some nuances.
That’s why I decided to also chime in, join this bandwagon and give my take on how to explain Google Analytics Cross-domain tracking with Google Tag Manager.
Brace yourself, this guide will be a long one (but definitely rewarding).
P.S. If you’re not sure whether you should use Google Tag Manager...