Google Tag Assistant

Google Tag Assistant is a tool for troubleshooting and debugging Google tags including Google Analytics 4 tags. The most common way to launch it is by using the 'Preview' function in Google Tag Manager, but you can also access it directly at

Previously, Google Tag Assistant existed as a Chrome extension. That extension has been renamed Tag Assistant Legacy and is no longer supported.

6 December 2020
New Google Tag Assistant not connecting? It could be Brave browser's 'Shields Up'

Brave browser 'Shields Up' is one reason why the new Google Tag Assistant shows a 'Could not connect' error when debugging GTM.

17 November 2019
Three ways to launch Google Publisher Console

If you are using Google Ad Manager to serve ads on your site, you should use Google Publisher Console too. Here are three ways to launch the Console...

James Clark
Hi! I'm James Clark and I'm a freelance web analyst from the UK. I'm here to help with your analytics, ad operations, and SEO issues.
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