Fathom Analytics — Website Analytics

Fathom Analytics is a hosted web analytics service that shows where visitors come from, which pages they read and what converts, using a script you add to your site's head. The vendor states that it does not use cookies; its data page describes building a visitor signature from the IP address, user-agent information, the site and a daily salt, and storing that signature with each pageview. There is no free plan: every plan starts with a 7-day free trial that needs a card, and plans are sized by monthly pageviews, which custom events also count toward.