Add noindex to Specific Post Type

Sometimes you want search engines not to index a specific post type (e.g. landing pages). The following code adds noindex, nofollow to a specific CPT. For more on preventing search results from being indexed.

add_action( 'wp_head', function() {
	if ( is_singular( 'your_post_type' ) ) {
		echo '<meta name="robots" content="noindex, nofollow">' . "n";
	}
} );

Replace your_post_type with your CPT slug.