The Facebook Pixel is a line of code that you can install on your website, in order to track conversions, micro-conversions, and behaviors of your website visitors.
The Facebook Pixel enables you to build Custom Audiences for your Facebook Ads. In doing this, you’ll be able to run retargeting campaigns on Facebook and show your ads to website visitors while they’re browsing through the social network with their PC or mobile phone.
The Facebook Pixel tracks anyone visiting your website, regardless of referral source. For this reason, retargeting can also reinforce all your marketing efforts from other platforms.
Here are some tips on how to boost your whole funnel with some very simple Pixel hacks.