Please go to the openSUSE Build Service (OBS) download location at http://download.opensuse.org/repositories/Kernel:/ if you are looking for the Kernel of the Day for x86_64. This site is only needed when testing SLE kernels on non-x86 architectures. Starting with SLE12, we can even build POWER and s390x packages in the OBS. Ask in the public mailing list if you have any questions.