Testimonials

What others say

More than 10,000 people have taken my courses. Here’s what some of them wrote afterwards.

10,000+ students from various organizations have benefited from my premium courses

  • Google
  • Electronic Arts
  • Accenture
  • Volkswagen
  • Yale University
  • Stanford University
  • Decathlon
  • Hertz
Any time anybody at Northwoods wants to learn GTM, we run them through Analytics Mania’s courses.
Fred PikeFred PikeNorthwoodsIntermediate/Advanced GTM Course
This course has been incredibly valuable, beginner-friendly, and not only focuses on GA4 and its implementation but also covers all business steps involved in implementing such an analytics tool. Each lesson is very well explained, and comments after lessons were really helpful. I attended both courses, GA4 and GTM, simultaneously, and I’m beyond satisfied with the knowledge I’ve gained in these months. The GA4 course helped me improve my GA4 skills and understand how to use the data from its reports, which allows me to optimize GA4 implementations for our company’s clients with confidence.
Sara LukićSara LukićDigital Advertising & Analytics SpecialistGA4 Course
I found the course extremely well structured, very comprehensive with loads of useful extra resources. Pace suited me, dense with information but inviting to rewatch items, when necessity comes. Great mix of strategic thinking and hands-on application in the tool. Many clarifying connections to Google Tag Manager. Good amount of critical notes and warnings regarding not-so-perfect or not-yet-available elements of GA4. Learning how to create the reports, but also (and even more) how to plan them for best use. Nice and calm presentation, no unnecessary frills. Absolute recommendation!
Petra StarmansPetra StarmansIndependent Search Engine Marketing ConsultantGA4 Course
This is an amazing course for everyone who does their first steps in GTM implementation, helpful if you are switching work from another tool like the Adobe DTM to Google GTM, and in general if you want to become more technical and comfortable with the topic of implementation. The way that Julius has designed and leads the course is great, very understandable, easy to follow. Additional resources and links provided are extremely helpful. I would totally recommend it – thank you Julius for providing such a fantastic course!
Tsvetelina AlexievaTsvetelina AlexievaAVP Digital Performance & Analytics at Allianz Global InvestorsGTM Masterclass
The course is very extensive and structured in a practical way. What I really like is how Julius starts with a theoretical basis and then goes on to how to put that theory into practice. The results of this course have been that setting up GA4 the right way has become my priority in understanding all the insights from the data. When you watch each module it is a matter of time before you find a ‘hidden information gem’. I for example really liked how to implement a workaround for having different ‘views’ in GA4.
Chris LambermobChris LambermobCo-founder & Google Ads specialist at UpmoreGA4 Course
I actually learned a lot more than I expected. I can recommend this course if one have both holes in their understanding of GTM, but also if there is variables or tags one hasn’t experience with. For example I learned how to track AJAX forms, something I didn’t know how to do before this. Some of the stuff sounds (by heading) very basic, but I actually think it goes beyond that. Because I didn’t expect to learn something for whole module 3 – but I must admit that I learned a lot. So thank you for this course
Dennis StammerjohanDennis StammerjohanSEO and PPC specialist at RealMæglerneGTM Masterclass
This GTM course was really well done and helped me learn how to think about using GTM rather than just how to set certain things up. Because every website is different, there isn’t one unique approach to GTM and this course helped me understand how to diagnose the way a website is built in order to properly track what I need to track. I used this methodology immediately after passing this course for a new project that came in and needed form tracking in a hard to track form.
Nick GrohNick GrohMarketing Technology Consultant at Miles TechnologiesGTM Masterclass
This is a very in-depth course that helped me take the first step and then dive deeper into more complex GTM topics. After completing it, I took over ~85% of the developer’s tasks related to web tracking. The structure of the course is very logical and fluent, all lessons are easy to follow. And, most importantly, I could immediately apply new knowledge on my own website. It definitely exceeded my expectations.
Evaldas MockusEvaldas MockusVP of Growth at OmnisendGTM Masterclass
Julius is a great teacher and this course will equip you with a solid foundation for effectively working with GTM. His pleasant way of explaining complex topics make this course accessible for many. I recommend this course for both beginners as well as intermediate users. After going through the material and practicing what you have learned, you will be much more confident in deploying GTM on your site.
Paul KoksPaul KoksAnalytics Advocate at Online MetricsGTM Masterclass
Great introductory class for beginners! I admit I had to re-watch some chapters but that was due to my inexperience in those areas. When I did go back and re-watch those chapters however, I was able to accomplish what I needed by just following along step by step. I especially love that I have this course as a resource (indefinitely) to reference whenever needed.
Allison D’Elia TernesAllison D’Elia TernesDigital Communications Analyst at University of North Carolina at CharlotteGTM Masterclass
I have been teaching Google Analytics and Google Tag Manager for many years, but I always felt there were some gaps in my knowledge. What I really liked about this course is that it goes beyond just showing the surface of GA4. It explains why analytics matters, how to set things up properly, and how businesses can actually use the data to make better decisions.
Elmira MousaviElmira MousaviDigital Marketing & Analytics SpecialistGA4 Course
I’m 100% sure this is one of the best (if not the best) GA4 courses on the internet. For everyone trying to learn and master GA4, this is a professional and well-detailed resource if your goal is to leverage your analytics knowledge. Julius offers a variety of examples, cases and always gives you useful resources to replicate them on your own projects.
David Martínez MataDavid Martínez MataSEO Team Leader at Los Creativos InternationalGA4 Course
This course was amazing. It helped me learn all the fundamentals in Google Tag Manager I was aiming for, and helped me build the confidence I needed to get started using the tool in my day to day job. It was very practical and easy to understand. Julius is a great teacher – very knowledgable and a clear communicator.
Adam EngströmAdam EngströmDigital Manager at Renault Nordic ABGTM Masterclass