That page is buggy wrt FTP status.
On Sat, Sep 07, 2013 at 12:04:30PM +0200, Roberto Muñoz wrote:
> I'm the new administrator of ftp.gul.uc3m.es mirror and while setting up
> the new server and checking all the errors I've noticed that in
> http://mirror.debian.org/status.html all FTP status are with "Error 1".
> What does it mean? Do I have something misconfigured?
Your mirror is ok through both FTP and HTTP, but the tracefile should be named
ftp.gul.uc3m.es instead of alberche.gul.uc3m.es.