sources.list entries for amd64 testing

["Leo Bogert" <spam-goes-to-dev-null@gmx.net>]

Hello,

I have been using the following since I installed amd64-etch-testing half a
year ago:

deb ftp://ftp.de.debian.org/debian-amd64/ testing main
deb-src ftp://ftp.de.debian.org/debian-amd64/ testing main

Now the testing branch does not work anymore, apt cannot find the files on
that mirror.
What is the correct URL for the testing packages?

Thanks, Leo Bogert