Inject Facebook or Google Pixels into the Head Section in WordPress

Last modified: June 3, 2026

Snippets

Add the above to the functions file and switch the “PIXEL GOES HERE” with the pixels you need to inject to the head of your WordPress site.

add_action('wp_head', 'inject_into_head');
function inject_into_head(){
?>
<!-- Facebook Pixel Code -->
PIXEL GOES HERE
<!-- End Facebook Pixel Code -->
<?php
};

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Final Word: Injecting Facebook and Google Pixels

Adding tracking pixels to the WordPress head section gives you full visibility into how visitors interact with your site across Facebook and Google’s advertising platforms. Once your pixels are in place, check that your Open Graph tags are also correct so that when posts are shared on Facebook, the right thumbnail appears. See our guide on how to fix the Facebook incorrect thumbnail issue in WordPress for that related fix.