Let's say you want to add forums or anything you your website. But you want to have a subdomain like forums.yourwebsite.com, it's pretty simple and straight forward . However we are gonna require 2 websites . And you can't use nameservers. If you need something to point your dns other than your domain provider with more security SSL and other cool stuff I recommend cloudflare check this out https://www.000webhost.com/forum/t/how-to-use-cloudflare-for-ssl/53612/6 . Let's get started.
2: Set the DNS Settings.
3: Go to the Web Address section in the menu.