add_field( [ 'id' => 'indexnow_description', 'type' => 'raw', 'content' => '

' . esc_html__( 'Insert URLs to send to the IndexNow API (one per line, up to 10,000):', 'rank-math' ) . '

', ] ); $cmb->add_field( [ 'id' => 'indexnow_urls', 'type' => 'textarea_small', 'sanitization_cb' => '__return_false', 'attributes' => [ 'class' => 'instant-indexing-urls', 'placeholder' => trailingslashit( home_url() ) . _x( 'hello-world', 'URL slug placeholder', 'rank-math' ), ], 'after_field' => '' . esc_html__( 'Submit URLs', 'rank-math' ) . ' ', ] );