http://ftp.company.com http://ftp.company.com makes perfect sense. It is the http listing of the files stored on the server, linking to the actual files served

http://ftp.company.com http://ftp.company.com makes perfect sense. It is the http listing of the files stored on the server, linking to the actual files served using FTP. FTP isn't made for dynamic content and the file list is just that. The main role of the domain is FTP serving, though.