Maintance mode with accessible landing page

Hi Luigi,

I thought of a workaround for this. If you have access to the WP CLI you can use the following commands: https://developer.wordpress.org/cli/commands/maintenance-mode/

Alternatively, you can put the following into functions.php (remember to backup your site before making this change):

// Activate WordPress Maintenance Mode
function wp_maintenance_mode() {
    if (!current_user_can('edit_themes') || !is_user_logged_in()) {
        wp_die('<h1>Under Maintenance</h1><br />Website under planned maintenance. Please check back later.');
    }
}
add_action('get_header', 'wp_maintenance_mode');

Now you have to use htaccess redirect (and exclude redirection on your specific pages).
This page might help with the code: http://www.webweaver.nu/html-tips/web-redirection.shtml

I tried to check out other plugins that have this feature but doesn’t require any payment and I think this one fits: https://wordpress.org/plugins/wp-maintenance-mode/

A similar topic for this issue: https://wordpress.org/support/topic/cant-exclude-the-home-page/