Glossary · Metrics
Engagement rate— what it means in affiliate marketing
The share of an audience that interacts with content rather than just seeing it.
Central to channel and influencer buying, and the easiest metric in the set to inflate. Judge it against reach and against the shape of the comments, not on its own.
Related terms
| Term | Definition |
|---|---|
| CTR | Click-through rate: clicks divided by impressions. |
| Conversion rate | The share of visitors who complete the target action. |
Entry updated 15 September 2026. All 276 terms in one page.