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' ) . ' ',
]
);