How do I track scroll depth?

Turn it on

Scroll depth is part of autocapture and is off by default.

1. Open the autocapture card under Web analyticsConfigurationSDK code. Autocapture is included from the Pro plan.
2. Turn on autocapture if it is not on yet, then turn on Scroll depth.

No code change is needed.

Where to read it

Open All-platform analyticsBehaviorHeatmaps.

• The page list shows the average maximum scroll depth when people left each page.
• The Scroll reach tab inside a page shows, for each depth, the share of visits that reached it or went further.

Pick a device first. A long page on mobile is many screens; on desktop it may be two.

How to read scroll reach

The curve always falls as you go down the page. What matters is where it falls fastest:

• A steep drop near the top means many people left after the first screen. Check whether the opening matches what brought them, and how fast the page loads.
• A steep drop in the middle often sits just above a block that looks like the end of the page, such as a wide banner or a large gap.
• A gentle slope to the bottom is what you want on long articles.

Compare scroll reach with where your key content and calls to action sit. If only 30% of visits reach the sign-up block, move it up or add one higher. For reading heatmaps in general, see how to read a heatmap.

Limits

Scroll data starts when you turn the setting on. Pages and elements excluded in the autocapture card are not measured. If sampling is below 100%, a sampled-out device records nothing on that page.

See also: create a heatmap and engaged session.