Paid media
Impression share
Impression share is the proportion of available impressions an ad received, with the remainder attributed to budget or to ad rank.
What is impression share?
Impression share is the proportion of available impressions an ad received, with the remainder attributed to budget or to ad rank. It is reported overall and as lost share for each cause.
What it changes
It separates two very different problems: not enough budget, and not competitive enough to qualify for the auction.
How it works in practice
Read alongside lost share to rank and lost share to budget, which point at relevance and bidding work respectively rather than at the same fix.
The usual mistake
A low impression share is not automatically a problem. If the lost share is on unprofitable queries, raising it would cost money rather than earn it.
If somebody uses this term to mean something else, it is worth asking which meaning.
Where this comes up in the work
It is part of Digital PR and Link Building, and more specifically of Digital PR campaigns. Across the rest of the work it shows up in:
- Technical SEO: it is the reason working out whether the index bloat is faceted navigation or something stranger is scoped the way it is
- Entity and Semantic SEO, because sorting out what happens to the entity when a brand name changes depends on it
- Local SEO, in which it is the first thing checked before keeping dozens of locations consistent without the central team becoming the bottleneck
- Ecommerce SEO, where it decides putting the buying guidance below the grid rather than above it
What to check
Two questions that establish whether this is actually in order on a given site:
- Whether the thing being reported is the thing you think is being reported
- Whether it holds on a mid-range phone and not only on the machine it was built on
Common questions
Will fixing impression share move rankings?
Not on its own, and claims that it does are usually overselling. It separates two very different problems: not enough budget, and not competitive enough to qualify for the auction.
How is impression share audited?
Read alongside lost share to rank and lost share to budget, which point at relevance and bidding work respectively rather than at the same fix.
Who should be responsible for impression share?
Usually whoever owns AI platform optimization, because working out whether low visibility is a content gap or an authority gap depends on it. In practice it falls between teams often enough that naming an owner is half the fix.
What does fixing impression share involve?
The diagnosis is cheap. The fix ranges from an afternoon to a project depending on how deep it sits in the build, and we scope the second after doing the first. There is more on this in Embedding, and a different angle on it in Enhanced conversions.
How urgent is impression share?
Before anything that depends on it, which is the test rather than a general ranking. It separates two very different problems: not enough budget, and not competitive enough to qualify for the auction. Where this gets detailed is Technical SEO for Real estate and property; where it gets argued about is Website Design and Development for Real estate and property.
How would we know impression share is a problem?
The symptom is usually downstream: it separates two very different problems: not enough budget, and not competitive enough to qualify for the auction, showing up as something else entirely in the reporting. This sits between Marketplace Marketing in Bengaluru and Paid Social and Meta Ads in Bengaluru, and borrows from both.
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