noindex() │ WP 2.1.0

Deprecated since 5.7.0. It is no longer supported and may be removed in future releases. Use wp_robots_noindex() on 'wp_robots' filter instead.

Displays a noindex meta tag if required by the blog configuration.

If a blog is marked as not being public then the noindex meta tag will be output to tell web robots not to index the page content.

Typical usage is as a wp_head callback:

add_action( 'wp_head', 'noindex' );

No Hooks.

Returns

null. Nothing (null).

Usage

noindex();

Notes

Changelog

Since 2.1.0 Introduced.
Deprecated since 5.7.0 Use wp_robots_noindex() instead on 'wp_robots' filter.

noindex() code WP 6.9.1

wp-includes/deprecated.php 
function noindex() {
	_deprecated_function( __FUNCTION__, '5.7.0', 'wp_robots_noindex()' );

	// If the blog is not public, tell robots to go away.
	if ( '0' == get_option( 'blog_public' ) ) {
		wp_no_robots();
	}
}