DNS Prefetch

Hi David,

Can you specify what you want to modify on these tags?

If you simply want to remove them, you can do it by adding this PHP snippet:
remove_action( 'wp_head', 'wp_resource_hints', 2 );

You can filter out some of the resource hints.
https://developer.wordpress.org/reference/functions/wp_resource_hints/

See the filter in use on the theme code here - https://github.com/tomusborne/generatepress/blob/b60b853630da6d9015722da903e53c8064148b0a/inc/general.php#L225

As you can see in the link provided, the theme adds <link rel=’dns-prefetch’ href=’//fonts.googleapis.com’ /> by default.

If you wish to modify the URL, you can do something like this:

Example:

function remove_dns_prefetch( $hints, $relation_type ) {
    if ( 'dns-prefetch' === $relation_type ) {
		foreach ($hints as $key => $hint) {
			echo $hint;
			if('fonts.googleapis.com' === $hint){
				$hints[$key] = 'your URL modified here';
			} if('https://s.w.org/images/core/emoji/13.0.0/svg/' === $hint){
				$hints[$key] = 'your URL modified here 2';
			}
			
			
		}
    }
	
	
    return $hints;
}

add_filter( 'wp_resource_hints', 'remove_dns_prefetch', 15, 2 );