Matomo
Matomo.org w:Matomo (software) is a free and open source w:web analytics application developed by a team of international developers, that runs on a w:PHP/w:MySQL webserver. (Wikipedia)
“Google Analytics alternative that protects your data and your customers' privacy - Take back control with Matomo – a powerful web analytics platform that gives you 100% data ownership.”
Consumerium.org uses a self-hosted Matomo instance for analytics for the MediaWikis and also Wordpress at consumerium.org and kuluttajisto.consumerium.org