Facebook’s Pixel feature is a really useful tool that essentially uses browser cookies to help target your promoted ads on Facebook to users who have already visited your site(s) and as a result are probably more likely to respond to your ad. Pixel is a great way to increase traffic and increase the effectiveness of the Facebook ads you choose to promote, and adding it to WordPress is incredibly easy.
When you sign up to use Pixel through your Facebook account, they’ll generate code for you that needs to be copied and pasted into the header of your source code files (between the <head> </head> tags)…it’s really that simple. If you’re not a web developer and don’t want to mess with your theme files, you can add HTML code to the header using the Header and Footer plugin — just install it and it’ll let you insert any code into your header or footer files in seconds.