What is a good impression share?

Brand campaigns: 90 percent or higher, losing brand auctions is handing over your cheapest wins. Generic campaigns: whatever profitability supports, and 100 percent is usually wrong because the marginal auctions cost the most. The trend line matters more than the level.

Should I fix lost impression share from budget or from rank first?

Rank first when quality is weak, those gains also cut costs. Budget only once the account converts profitably, then more spend buys more of a good thing. Raising budget into a low-rank account just buys more expensive mediocrity.

Paid Search

Impression Share

Impression share is the percentage of impressions your ads received out of the total they were eligible for.

A low share means you are missing available demand, usually due to budget or low Ad Rank. For example, a 40% impression share means your ad showed in fewer than half the auctions it could have. It highlights room to grow by raising budget or improving quality.

The split between lost-to-budget and lost-to-rank is the actionable part: the first is bought back with money, the second only with better Ad Rank, and the wrong diagnosis wastes a quarter. Brand campaigns should run near 95%+, losing brand impressions to a competitor is handing over your cheapest conversions. For everything else, 100% is not the goal: the last auctions are the most expensive, and profitable accounts routinely leave low-value impression share unclaimed. Watch the trend, a falling share with steady budget means the auction is getting hotter around you.

Example

Search impression share reads 45%: lost to budget 35%, lost to rank 20%. The campaign is dark by early afternoon each day, and every skipped auction after that is demand handed to competitors. Budget solves the first number; only better Ad Rank solves the second. The report is effectively a growth forecast: 55% of the market's searches are still unclaimed.

Frequently asked questions

What is a good impression share?: Brand campaigns: 90 percent or higher, losing brand auctions is handing over your cheapest wins. Generic campaigns: whatever profitability supports, and 100 percent is usually wrong because the marginal auctions cost the most. The trend line matters more than the level.
Should I fix lost impression share from budget or from rank first?: Rank first when quality is weak, those gains also cut costs. Budget only once the account converts profitably, then more spend buys more of a good thing. Raising budget into a low-rank account just buys more expensive mediocrity.

Related terms

Impressions Ad Rank Reach

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