Get url without controller and action in cakephp 4.2

Need Help
1

How can I get the url of a site without controller and action? I need this to redirect to an installation of wordpress.
The url is www.cobranzassindicato.com.ar/sitio_web/

2

Router::url('/', true)? Configure::read('App.fullBaseUrl')? env('HTTP_HOST')? Or just ->redirect('/')?

3

Thank you, I solved it with Router::url(’/’, true)