- Definition
- Observed visibility is the share of monitored searches in which a domain showed an ad.
It is a sample measure: the numerator is the number of observations where the domain appeared, and the denominator is the number of observations in your selection of keywords, locations, devices and dates.
It is not Google impression share, which is calculated from an advertiser's own auctions. The two numbers answer different questions and should be labeled separately in reports.
How Ads Lighthouse observes it
The Visibility column in Paid results and the advertiser reports uses this definition, and it follows your filters and date range, including in exports.
Official sources
Sources checked on .