About data protection and GDPR, a good thing with Matomo is that, if configured properly, it can be used without requiring to collect the user's consent (since Matomo doesn't use the data for its own purpose). Of course there are less information collected but at least you don't have to display a form as soon as a user enters your website.
The French data protection authority issued a piece of code (JS) which must be used to avoid collecting the user's consent. I don't know about other data protection authorities in the EU but it shouldn't be much different.
The French data protection authority issued a piece of code (JS) which must be used to avoid collecting the user's consent. I don't know about other data protection authorities in the EU but it shouldn't be much different.