Target Impression Share is an automated bidding strategy that aims to show an advertisement for a specified percentage of eligible impressions in search results. Instead of focusing primarily on conversions or clicks, the goal of this strategy is to maximize visibility by ensuring that ads appear frequently for relevant search queries.
This strategy is available in advertising platforms such as Google Ads and is often used by advertisers who want to dominate search visibility for branded keywords or highly competitive search terms.
How Target Impression Share Works
When using the Target Impression Share strategy, advertisers select a desired percentage of impressions they want their ads to receive out of the total number of available impressions in the auction.
For example:
- Target impression share: 80%
- This means the advertiser aims to appear in 80% of all eligible searches where their ad could be shown.
The advertising platform automatically adjusts bids during the ad auction to help reach this visibility target.
Advertisers can also choose where they want their ads to appear on the search results page.
Placement Options
Target Impression Share allows advertisers to prioritize specific ad positions:
Anywhere on the Results Page
The system aims to show the ad anywhere within the search results.
Top of the Page
Ads are prioritized to appear above the organic search results.
Absolute Top of the Page
Ads aim to appear in the first ad position at the very top of the results page.
When to Use Target Impression Share
This bidding strategy is commonly used when the main objective is maximum brand visibility, such as:
- Protecting branded keywords from competitors
- Increasing brand awareness in competitive search results
- Maintaining a dominant presence for important search queries
It is less focused on direct conversion optimization compared to strategies like Target CPA or Target ROAS.
Factors That Affect Impression Share
Even with a target set, several factors can influence the actual impression share achieved:
- Competition in the ad auction
- Bid limits or budget constraints
- Ad relevance and Quality Score
- Search volume for targeted keywords
If the budget or maximum bid is too low, the system may not reach the desired impression share.
Summary
Target Impression Share is an automated bidding strategy designed to maximize ad visibility by aiming to appear in a specified percentage of eligible search auctions. By automatically adjusting bids to reach a visibility target, advertisers can strengthen brand presence and maintain a consistent position in search results.