Page Depth

Page depth captures how far into a session's sequence a page falls, or equivalently how many pages deep users go within a session — a measure of how far they explore the site.

Page depth has two close readings that must not be blended: one is session depth, the distribution of how many pages sessions contain, and the other is a page's ordinal position in the journey, whether it is usually the first page or the fifth. Both lead to one question: where do users stop. Its value is that the average pageviews per session gives a flat number while page depth shows the distribution, and this is where single-page sessions are separated from deep journeys. A common trap is assuming more depth is good; in a purchase funnel, deep can mean good engagement, but that same depth can mean the user is lost and wandering pages aimlessly. Page depth is therefore meaningful only when read beside the journey's destination: deep that ends in a conversion is good, deep that ends in an exit is a sign of friction.