Glossary · Tracking and tech
Postback— what it means in affiliate marketing
A server-to-server call that reports a conversion from the advertiser's system to the affiliate's tracker.
Invisible to the browser, so it survives ad blockers and consent prompts that break pixels. When conversions stop arriving while traffic flows, the postback is the first thing to check — usually a lost click ID.
Related terms
| Term | Definition |
|---|---|
| Tracking | Recording a user's path from click to conversion through a unique identifier. |
| Attribution | Deciding which channel or partner gets credit for a conversion. |
| Conversion window | How long after a click a conversion still counts. |
Entry updated 21 July 2026. All 276 terms in one page.
