Default keywords?

Hello,

Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.

Although it is not recommended to use the same keyword for all of your posts/pages, if still want to include this, you can use the following filter on your website:

function update_focus_keywords()
{
    $post_types = array('post', 'page');
    $posts = get_posts(array(
    'posts_per_page' => -1,
    'post_type'      => $post_types,
));
    foreach ($posts as $p) {
        update_post_meta($p->ID, 'rank_math_focus_keyword', 'your_focus_keyword_here');
    }
}
add_action('init', 'update_focus_keywords');

Please make sure to change the your_focus_keyword_here with your actual focus keyword.

Here’s how you can add filter/hook to your WordPress site: https://rankmath.com/kb/wordpress-hooks-actions-filters/

Let us know how it goes. Looking forward to helping you.

Thank you.