: How have others measured this in the past?
: Locate your primary configuration file (e.g., httpd.conf or apache2.conf ) and remove the Indexes keyword, or prepend it with a minus sign:
It can block the user and return a 403 Forbidden error.
And then it was gone.
This is the "Index of /xxx." It is a directory listing stripped of pretense. It doesn't care about CSS, user experience, or legality. It cares only about paths.