Add default vhost

Hi. I just installed ngnix with pagespeed and brotli. When it is finished installing and it has started the server I try to visit the website. http://206.189.221.179/. But there is no welcome page here. Is there any docs on where everything is located at and how I can fix this?

EDIT: The issue was that starting from nginx 1.13 and up they change directories. This works. https://hostup.org/blog/how-to-install-configure-latest-nginx-mainline-version-on-ubuntu/