There are many data-sources on how many websites use Google Analytics.
In a post from 2015 Marketing land says that Google analytics is used by 30–50 Million websites.
Other data-sources like W3techs say that Google Analytics is used by 54.9% of all the websites, that is a traffic analysis tool market share of 83.5%.
Either way no matter how many websites use it is one of the most popular analytics tools in the world and if you are Digital Marketer, Growth hacker, Marketing Manager and even a CEO you must learn how to use it !
With Google Analytics you can:
- Track everything about your users even what resolution screen they are using.
- Create all kinds of reports and thus learn more about the people using your service.
- Pretty much everything about where they come from, which channel provides the most leads, sales, downloads etc.
- Performing A/B testing!
In short, Google analytics is an extremely powerful tool if you know how to use it and if you invest more time to understand it you can only win.