Glossary

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Glossary / Evaluation and implementation guide

Cost Per Mille (CPM)

Cost Per Mille (CPM) is the amount an advertiser pays for every 1,000 impressions of an ad, regardless of clicks or conversions. 'Mille' is Latin for thousand.

It is the standard pricing model for awareness-focused display, video and social campaigns, and the baseline for comparing media costs across channels.

A practical example

Example: a B2B software team runs a LinkedIn campaign at a $40 CPM and an industry newsletter placement at a $25 CPM.

The newsletter looks cheaper per impression, but the team also compares audience fit and click-through before shifting budget.

What to evaluate before investing

  • Ask whether the platform charges on CPM, CPC or CPA and how auction dynamics affect your effective rate
  • Verify how impression quality is defined, including viewability standards and whether bot filtering is included
  • Check whether reporting breaks CPM down by audience segment, placement and creative so you can compare real costs

Limitations and tradeoffs

A low CPM is not a performance guarantee: impressions to the wrong audience can cost less and still deliver no pipeline.

Plan your next step with MeshLine

Connect this decision to your automation, organic marketing and customer lifecycle management. In a MeshLine demo, discuss your existing tools, the scope you need and how to measure the result.