4 March 2026: Privacy And Web Analytics Meetup, Helsinki

(Last updated June 2014: Read the latest post on the extension, GTM Sonar v1.2.) I updated my Chrome Extension, GTM Auto-Event Listener Debugger v1.1. I released the first version a couple of days ago. The extension can be used to debug Google Tag Manager’s auto-event …

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(Last updated June 2014: Read the latest post on the extension, GTM Sonar v1.2.) Many of the Google Tag Manager articles on this blog could be considered hacks, in that they extend the out-of-the-box features of GTM in ways that will surely not be officially supported by Google. …

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…or How My Organic Traffic Went Through The Roof. It’s been one of the craziest 365 days in my life, and I thought it would be apt to write a bit about all the stuff that’s taken place. I haven’t really been talking about myself in my guides and other …

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Let’s say you want to set up a rudimentary email alert system in your Google Tag Manager implementation. Say, for example, you want to receive an email every time an uncaught error occurs on your website. It’s not a very good use case, since a large website can spawn …

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In this post, I’ll walk you through a tutorial on how to create a Google Tag Manager extension. This extension will be a new listener, whose sole job is to listen for changes in the HTML and CSS markup on the page. The reason I’m teaching you how to create a DOM …

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If you know your Google Tag Manager, you know that GTM pushes three data layer events into the queue when any page with the container snippet is rendered. Each of these three events signals a specific stage in the page load process. Here are the events (be sure to read my guide …

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Simo Ahava

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

Senior Data Advocate at Reaktor

Finland