rel_canonical() WordPress Function

The rel_canonical() function is a powerful tool for managing your Wordpress site's SEO. This function allows you to specify the canonical URL for your site, which can help you avoid duplicate content issues with search engines. You can use the rel_canonical() function to specify the canonical URL for your entire site, or for specific pages or posts.

rel_canonical() #

function rel_canonical() {
	if ( ! is_singular() ) {
		return;
	}

	$id = get_queried_object_id();

	if ( 0 === $id ) {
		return;
	}

	$url = wp_get_canonical_url( $id );

	if ( ! empty( $url ) ) {
		echo '<link rel="canonical" href="' . esc_url( $url ) . '" />' . "\n";
	}
}