How Search Lost Impression Share (Rank) Works
The estimate reflects auction-time factors such as bids, quality, thresholds, competition, search context and expected asset impact.
A Simple Example
A campaign may have enough budget but still miss half of eligible visibility because its bid and ad experience are not competitive in those auctions.
Why Search Lost Impression Share (Rank) Matters
It shows that adding budget alone will not fix every visibility problem.
Common Misreading
A high loss to rank does not mean “raise bids” is always the best answer. Improve query relevance, ads, landing pages and economics before buying every available impression.
Continue with the practical guide
The glossary gives you the definition. The guide covers the decisions and implementation in more depth.
Diagnose the Ad Rank behind lost share →