My needs are pretty simple, but I just do server-side logging in a Django Middleware. I wanted to use a tracking cookie to track a user across the site, but I h

My needs are pretty simple, but I just do server-side logging in a Django Middleware. I wanted to use a tracking cookie to track a user across the site, but I had a hell of a time trying to figure out whether that violated the GDPR, so I just log the user agent instead. What really is the major gain to a big third party analytics platform when you really just need to know how somebody moves through your site, what the hot and cold paths are, and what influences retention and revisits?