Reading your reports
Campaign attribution and the entry, exit and grouped lenses in the Pages panel.
Campaign tracking
Tag any link with the standard UTM parameters (utm_source, utm_medium, utm_campaign, utm_term, utm_content) and the Sources panel breaks your traffic down by each of them. Campaign values are read once from the entry URL and attributed to every page of that visit, with no cookies and no storage. Every row is a click-to-filter, so you can see exactly which pages a campaign's visitors read.
Entry and exit pages
The Pages panel has three lenses. All pages counts every view. Entry shows where visits began: views that arrived with no internal previous page. Exit shows where visits ended: a page's views minus the onward internal journeys recorded from it. Both are derived from the previous-page signal each pageview already carries, with no cookies and no storage. The Grouped toggle collates any lens by first path segment (/docs/*).