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Hey, I’m Julius Fedorovicius
I founded Analytics Mania in late 2016. Since then, the blog has grown strong and continues to serve hundreds of thousands of marketers and analysts. Here I share my knowledge, experiments, learnings related to web analytics, mainly Google Tag Manager and Google Analytics.
I also run the Google Tag Manager community on Facebook where awesome people from around the world help each other.
Last but not least, I actively help others to learn Google Tag Manager by running workshops and creating GTM online courses.
Google Tag Manager Resources
Latest Posts from the Blog
8 Reasons Why a Tag in Google Tag Manager is Not Firing (or Fires When it Shouldn’t)
Updated: July 22nd, 2021. Note: Even though some screenshots are using the older version of GTM preview mode, that...
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Google Tag Manager vs Google Analytics: What’s the difference?
Updated: July 21st, 2021. When I first heard about Google Tag Manager (GTM) in early 2013, I felt a bit...
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Is Google Tag Manager Preview Mode Not Working? 22 Ways To Fix It.
Updated: July 21st, 2021. Is Google Tag Manager Preview Mode not working? I’m pretty sure we’ve all been there at...
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