Username: natas3
Password: G6ctbMJ5Nb4cbFwhpMPSvxGHhQ7I6W8Q
URL: <http://natas3.natas.labs.overthewire.org>
There seems to be nothing on this page too.
We can see how the robots.txt file looks and analyze the content.
Directory which natas was trying to protect.
Contents of users.txt
Password: tKOcJIbzM4lTs8hbCmzn5Zr4434fGZQm