Marketing Terms



A single instance of an online advertisement being displayed.


* This definition may be an over-simplification, as there is no standard way to count impressions. All of the differences can add up to very large discrepancies, yet people make purchases based on impression every day.

So… what is the definition?

Currently, whatever a buyer and seller agree on.

see also: Digital Marketing Tools

Related Terms

CPM, page view

view all terms in the Online Advertising glossary or all terms in the Digital Marketing glossary


Display Advertising Stats 2019: SEMrush Study
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Why Can’t Johnny Count Ad Impressions?
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Why We Can’t Kill the Impression Just Yet
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The Impression Must Be Destroyed! (Part 2)
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The Impression Must Be Destroyed! (Part 1)
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That Sneaking Impression: Part 2
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That Sneaking Impression
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