# Tracking with the Meta Pixel | Developer Documentation

<div id="bkmrk-tracking-with-the-me">## Tracking with the Meta Pixel

<div><span>Updated: Nov 4, 2025</span></div><div>The [Meta Pixel](https://developers.facebook.com/docs/meta-pixel) is a snippet of JavaScript code that allows you to track visitor activity on your website. It works by loading a small library of functions that you can use whenever a site visitor takes an action (i.e., an event) that you want to track; this is called a conversion.</div><div>Embedding the Meta Pixel is a feature that lets you know how many visitors to a given page have clicked on the embedded signup button. This can help you understand how many people considered WhatsApp and how many successfully converted.</div><div>Make sure the [initial code setup](https://developers.facebook.com/docs/meta-pixel/get-started#base-code) triggers a `Pageview` event with your Facebook app ID and the `feature` parameter.</div></div>