ftp://ftp.debian.de/  direct

[DIR]debian/  direct  1000+ twin directories
[DIR]backports.org/  direct  16 twin directories
[DIR]debian-amd64/  direct  63 twin directories
[DIR]debian-archive/  direct  24 twin directories
[DIR]debian-cd/  direct  510+ twin directories
[DIR]debian-non-US/  direct  111 twin directories
[DIR]debian-armeb/  direct  8 twin directories
[DIR]debian-security/  direct  89 twin directories
[DIR]debian-ports/  direct  2 twin directories
[DIR]debian-volatile/  direct  35 twin directories
[DIR]pub/  direct  1000+ twin directories