CPM

Stands for “Cost Per Thousand” (M is the Roman numeral for 1,000). This is the amount an advertiser pays for 1,000 impressions of their ad. For example, if a publisher charges $10 CPM, and your ad shows 2000 times, you will pay $20 for the campaign ($10 x 1000 impressions) x 2. Measuring ad success with CPM is most common in awareness campaigns, where impressions are more important than conversions or clicks.

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