If you create a new site with a new WordPress install, a temporary URL (SITENAME.kinsta.com) is created automatically, so the site URL and home URL will be SITENAME.kinsta.com. If you add the final domain to this site, you have to change these settings within your WordPress dashboard.

To change them, please log in to your wp-admin dashboard and go to Settings/General. Update your WordPress Address URL and Site Address URL.

change temporary url - fresh install