Facebook Pixel is a piece of code that is placed on the website. This code works in collecting data of customers to track conversions from Facebook ads. Moreover it gives the insight about audiences that how they use your website. By tracking conversions from Facebook ads, you can optimize the ad campaigns based on target audiences. Facebook Pixel lets you read user’s behaviour and identify reasons of their leaving of the website. The process involves placing and activating cookies that trace users while they interact with the business.