To be fair, this tip isn’t just for Google Tag Manager but for regular old on-page Google Analytics as well. It’s one of those little things that’s corroding your data quality without you ever realizing it. Namely, this tip is about how to handle cross-domain tracking in situations where you are sending data to multiple Google Analytics properties on the same page. It’s a very typical scenario - you have a “local” property, which tracks only the traffic of the current site, and then a “rollup” property, where you send data from all your organization’s websites.

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I’ve always been proud to avoid the typical headline clickbait of “Ultimate guide to pigeon care”, “All you need to know about the Great Vowel Shift”, “Did you know that you’ve been smoking peyote wrong your whole life?”. I’m ready to make an exception now by adding a BIG WHOPPING NUMBER to the title. You see, the amount of knowledge one can accumulate about anything they do on a daily basis is mind-blowing.

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A couple of years ago I wrote an article on tracking interactions with the SoundCloud widget via Google Tag Manager. When a platform provides a JavaScript embed API, it’s surprisingly easy to track interactions with the player. You’ve seen this with YouTube, with SoundCloud, with JWPlayer, and now you’ll see how to do this with the Mixcloud player. If you don’t know what Mixcloud is, well it’s a hugely popular streaming service for DJs, podcasts, radio shows, and other published radio media.

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The beauty of #GTMTips, at least how I’ve envisioned them, is that they can be really simple or crazy complex. The important thing is that the idea is conveyed clearly enough. That’s why so many of these tips have originated from discussions in our Google Tag Manager Google+ community, the Product Forums, and in private email correspondence with people asking for help. Today’s tip, for example, originated from a back-and-forth with Süleyman Okan, so thank you for the inspiration!

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Last updated 24 August 2022: The instructions in this article are no longer that useful, as you can simply use the native JavaScript Element.closest(selector) method instead of the {{Find Closest}} trick described in this article. Browser support for closest has thankfully improved a great deal since this article was originally written. Google Tag Manager provides us with a bunch of handy triggers, designed to make capturing user interactions on the website much easier.

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One of the biggest fears I have as a Google Tag Manager user is a broken release of the website (or app) on which I have deployed GTM. Far too often, lack of proper communication practices within an organization lead to a release being pushed out without thoroughly testing how this release impacts any existing tracking solutions. Luckily there are ways to mitigate this. The most significant and impactful precautions you can take are all about process:

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I recently published a #GTMTips guide called 10 Useful CSS Selectors, and it was very well received. Inspired by the feedback, here’s the next instalment. This time, we’re going over some useful JavaScript tips and tricks that you can use to make your Google Tag Manager deployment even more efficient. I’ve written a lot about JavaScript in this blog, and I intend to keep on doing so in the future. As always, if JavaScript is somewhat of a mystery to you, I strongly recommend you take the Codecademy (free) course on JS, and take a look at the other available web technology tracks while you’re there!

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