Where to download cuda8.0?

Tensorflow only supports cuda8 however the CUDA download site only has cuda9. Where to get cuda8?

I just found it here: https://developer.nvidia.com/cuda-80-ga2-download-archive

oops, I just have a question, where to download CUDA 9?

https://developer.nvidia.com/cuda-downloads

NVIDIA Developer Site is under going maintenance.
The site will be back by shortly.
We apologize for any inconvenience.

For technical questions, find answers and engage on our forums: devtalk.nvidia.com

While you are waiting checkout the latest CUDA Blog at : devblogs.nvidia.com

You may find driver downloads and other product information at nvidia.com

PS: The maintenance is only in China?

The site seems to be perfectly accessible to me, from California. You could try this deeper link to see whether that gets you around any blockage that may exist on the Chinese side:

https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&target_distro=Ubuntu

Thank you @njuffa, this link works! cheers!