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A while ago I posted a #GTMTips post where I detailed the steps you can take to opt-out of all Google Analytics tracking and the DoubleClick redirects that often follow. It was a fun exercise, but because it relies on preventing requests on a tag-by-tag basis (using the ubiquituous customTask), it can be a chore to handle in large containers. In this article, we’ll continue with the theme of opting out from Google Analytics tracking by leveraging a solution provided by the tool itself.

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Google Tag Manager makes it fairly easy to do cross-domain tracking. Basically, you list the hostnames you want to automatically decorate with linker parameters in the Auto-Link Domains field of your Page View tag, and that takes care of decorating the URLs with the necessary parameter. It’s dead easy, even if there are a bunch of traps you need to watch out for (see my post on troubleshooting cross-domain tracking issues).

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One of the challenges in working with Google Tag Manager (or any JavaScript-based platform for that matter) is what to do with race conditions. A race condition emerges when you have two resources competing for execution in the browser, and there is a degree of unpredictability to which “wins” the race. A prime example is working with jQuery. It’s one of the most popular JavaScript libraries out there, and websites utilize it for a multitude of things, many useful for Google Tag Manager, too.

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With GDPR looming around the corner, it’s time to explore the options you have at your disposal for respecting the new, stricter regulations for tracking users and for collecting data about their visits to your website. UPDATE: It looks like if you have the Advertising / Enable Display Advertising Features toggle set to True in the Google Analytics tag settings, setting the displayFeaturesTask null will not work in the solution outlined below.

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Simo Ahava

Husband | Father | Analytics developer
simo (at) simoahava.com

Senior Data Advocate at Reaktor

Finland