Reply To: add code before the closing

Hello,

The below code will help you to add this meta to the head tag, please paste it to the functions.php file in your child theme.

add_action(
	'wp_head',
	function() {
		echo '<meta name="p:domain_verify" content="add551991282887361728df9bf830974"/>';
	}
);

You can also reach out to us if you have any questions.

Kind Regards