Contributors to this thread:

Playing around with #goaccess for privacy preserving traffic #analytics. Wrote a tiny script that is run by a cron-job and a (for now) super simple PHP site that works as a menu for archived traffic states: https://traffic.jayvii.de/

In case you don't know #goaccess, do check it out! https://goaccess.io/

it is a really versatile, fast and quite flexible log-file analyser for webservers, i.e. you do not include any nasty tracking java-script in websites/-apps and do not follow every move of visitors. It is the perfect example for "tracking traffic" versus "tracking people".