It is actually easy to implement GA-like functionality in JS, send the event data to the server, and process it e.g. daily. You can start slowly, e.g. track onl

It is actually easy to implement GA-like functionality in JS, send the event data to the server, and process it e.g. daily. You can start slowly, e.g. track only clicks (make it sync), visit time and scroll (both async). Of course my homegrown analytics reporting is far from Google's, but at least I have found a great balance between getting useful usage data on my sites, and at the same time respecting the visitors' privacy.