# Ad Targeting

> Choosing which people an ad campaign tries to reach, by audience, interest, behavior, geography, or device, so spend is directed at the most relevant users.

**Ad targeting** is choosing which people an ad campaign tries to reach — by audience, interest, behavior, geography, device, or lookalike modeling — so budget is directed at the most relevant users. It is how an advertiser narrows or broadens who sees an ad.

## How AnyTrack improves ad targeting

Modern targeting on Meta and Google increasingly relies on the platform's own modeling from conversion signals rather than manual interest selection. AnyTrack feeds clean, server-side conversions to the platforms, which sharpens the converter [audiences](/glossary/audience) and [lookalike audiences](/glossary/lookalike-audience) the algorithm builds — better seed data produces better-targeted delivery and better retargeting pools.

## Ad Targeting vs Segmentation vs Audience

- [Segmentation](/glossary/segmentation) — segmentation organizes *your own* data into groups; ad targeting points a campaign at people, often using those groups.
- [Audience](/glossary/audience) — an audience is the group itself; ad targeting is the act of aiming a campaign at one.