Things I’ve built

Analytics Mania

A blog about Google Tag Manager, Google Analytics and server-side tagging. It started because Google didn’t have an official GTM blog, and grew into hundreds of in-depth guides read by marketers and analysts every month.

• Blog
• GTM Recipes library
• E-books and guides
• Newsletter, 50,000+ readers

analyticsmania.com

Online courses

Five premium courses, taken by more than 10,000 students. Each one is built around practice: tasks on a sandbox website, templates and checklists, and updates whenever Google changes how things work.

• Google Tag Manager Masterclass for BeginnersA step-by-step foundation in GTM, from the first tag to consent mode.
• Intermediate/Advanced Google Tag Manager CourseServer-side tagging, GA4 ecommerce, HTML/CSS/DOM and custom data access.
• Google Analytics CoursePlanning a setup, configuration, reporting and analysis.
• JavaScript for Google Tag ManagerThe JavaScript you need for advanced tracking, taught for non-developers.
• First-Party Data MasterclassServer-side GTM, CRM and offline conversion syncing, the Data Manager API, profit tracking and data enrichment.

The Analytics Mania YouTube channel

Videos on GTM, GA4, server-side tagging and conversion tracking, with 150,000+ subscribers. Most of them are screen-recorded walkthroughs that show the whole process, including the part where you test that it works.

Watch on YouTube

Google Tag Manager Community

A Facebook group for GTM questions, with tens of thousands of members. People post a problem, and usually someone who has already solved it answers.

Join the group

Google Analytics 4 Community

The GA4 counterpart of the GTM group, started when everyone had to move from Universal Analytics to GA4.

Join the group

In-class GTM workshops

Where the teaching started: hands-on Google Tag Manager workshops in Vilnius, before any of it moved online.