Facebook Pixel The Facebook pixel is an analytics tool that allows us to measure the effectiveness of our advertisements by understanding the actions visitors take on the Site. We use pixel data to: • Make sure our advertisements are being shown to the right people<br> <br>• Build advertising audience<br> <br>• Unlock additional Facebook advertising tools<br> <br>• When someone visits the Site, and acts (like making a donation) the Facebook pixel is triggered and reports this action.