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Reduce ad density

Overview

This audit ensures that ads take up no more than 30% of the page vertically. An ad density greater than 30% has been found to negatively impact user experience1.

Recommendations

Depending on the situation, slots should either be spaced farther apart or have a reduced size.

More information

On mobile devices, we assume a single column layout and so all ads on the page are included in the ad density calculation. On desktop, we divide the page into multiple vertical slices to account for multi-column layouts. The audit measures ad density in each slice individually to ensure no individual slice exceeds the maximum recommended threshold.

To account for lazy loading, we measure content length up to 1 viewport past the last ad. To measure ad density over the entire content, disable lazy loading.

Ad Experience: Ad Density Higher Than 30%
What publishers need to know now about creating a better ad experience