> For the complete documentation index, see [llms.txt](https://docs.exoclick.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.exoclick.com/advertisers/campaigns/iframe-events.md).
# Iframe Events
Advertisers are able to track events in their Ads. These events are programmatically managed directly in the client browser with the help of JavaScript.
## Events
### creativeDisplayed
{% hint style="info" %}
This is only available for **Desktop Fullpage Interstitial** and **Mobile Fullpage Interstitial** (*DFPI/MFPI*) Ad Format campaigns with **iframe URL** variation.
{% endhint %}
When the ad is displayed to the user, a message is sent into the iframe called `creativeDisplayed`.
You can track this event inside your iframe by using the script below, which adds an event listener to catch the sent message once the ad is displayed to the user.
```html
```
## Example - Fullpage Interstitial
```html
My test iframe heading
My test iframe paragraph
Waiting for the message
```
---
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