# Ad stacking

A fraud technique that places multiple ads on top of one another while reporting them as separate displays.

A fraud technique that places multiple ads on top of one another while reporting them as separate displays.

## An example

A page hides several paid banners behind the one visible banner.

## Why it matters

An ad response or rendered element is not proof that a person could see the ad.


## Related terms
- [Ad placement](https://jolts.xyz/resources/glossary/ad-placement)
- [Ad spend](https://jolts.xyz/resources/glossary/ad-spend)
- [Advertiser](https://jolts.xyz/resources/glossary/advertiser)
- [Publisher](https://jolts.xyz/resources/glossary/publisher)

## Next step

[Explore advertising](https://jolts.xyz/advertisers) or [monetize your AI app](https://jolts.xyz/publishers).