Definition
The Meta Pixel is a piece of code on your website that reports visits and actions to Meta. It lets Meta optimise ads and measure conversions.
Meta Pixel explained
The pixel tracks standard events such as ViewContent, AddToCart and Purchase. Browser restrictions mean it should be paired with the Conversions API for reliable tracking.
Example
A store fires a Purchase event with order value on the thank-you page.
See it in real ads
Browse millions of real Facebook and Instagram ads to see how top advertisers put these ideas into practice.