Every HTTP blog describes what HTTP headers are and what they do... most of it repeatedly copied and pasted ad infinitum... however...
So far, I have failed to find any advice on how to locate these files.
Perhaps the 'hosted site' owner cannot access these files... if so it will save hours of research time if that can be confirmed.
This is what millions of website owners sees in CPanel:
/.lastlogin
/.gemrc
/.contactemail
/.md5sum
/.bash_profile
/.bash_logout
/.bashrc
/.zshrc
/.bash_profile.rpmnew
/public_html
/logs
/.cpanel
/tmp
/.mysql_backup
/.trash
/etc
/access-logs
/.cl.selector
/.cagefs
/.cphorde
/www
/public_ftp
/mail
/.htpasswds
How do HTTP headers fit into this scheme of things?