Redirect repositories in sources.list for Debian Stretch

[Markos <markos@c2o.pro.br>]

Hi,

I had placed in sources.list of my old Debian 8 the address:

deb http://httpredir.debian.org/debian jessie main contrib non-free

Now I've just installed Debian 9 (stretch) and I'm looking for a site 
for repository redirection, but I'm confused.

I found the sites:

http://httpredir.debian.org/

http://deb.debian.org/

http://http.debian.net/

Are they all reliable?

Thank you,
Markos