Categories: Buying, Costs & Planning

What Are Impressions? And Why Do They Matter?

Not to be confused with Impressionism. Claude Monet, Low Tide at Pourville, 1882.

Impression

The act of a person viewing your ad.

The term is most often used in digital marketing, where an impression counts each time an ad loads and is visible on a website. But impressions aren’t exclusive to digital: they also describe any time a person encounters an out-of-home (OOH) ad, like a roadside billboard. Here’s what makes impressions important.

Generating Business

An ad that reaches far and wide is more likely to bring in new customers than one seen by only a few people. Even though OOH ads don’t usually target a particular audience, OOH reaches consumers more than any other medium.

96%

Of consumers are exposed to outdoor ads

71%

See outdoor ads regularly

OOH ads won’t connect with every person who sees them, but they garner far more impressions than most media and reach the most diverse audiences, making it more likely those impressions turn into purchases.

Cost

Advertising costs are often based on impressions, priced per thousand impressions—called cost per mille (CPM). By this measure, billboards and other OOH media are the most efficient ad formats, even including digital.

$3–$6According to the OAAA, OOH ads cost $3 to $6 per thousand impressions, the lowest of any ad format.

Tracking Impressions

Digital ads track impressions whenever an ad loads—although bot traffic muddies what counts as a real impression. OOH ads can’t be tracked that way, but alternative approaches offer accurate estimates of how many people were near an ad:

Vehicle & foot traffic data
Geotagging
Census data
Data modeling
Companies such as Geopath and PeopleToMySpot track this data and provide impression estimates for OOH advertising.

Make an Impression

Still considering out-of-home advertising? Visit BillboardsIn.com to get started and make a stunning outdoor ad today.

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