Glossary · Metrics
Reach— what it means in affiliate marketing
The number of unique people who saw an ad or a piece of content in a period.
Impressions count views and reach counts people; the ratio between them is frequency. In channel buying reach is the number sellers quote and the number worth verifying.
Related terms
| Term | Definition |
|---|---|
| Targeting | The settings that decide who sees an ad: geo, age, interests, device, behaviour. |
| CTR | Click-through rate: clicks divided by impressions. |
Entry updated 29 July 2026. All 276 terms in one page.
