The site is available via Tor @ phkttm64gbquasaq.onion 

I don't know if mining on Tor is up.  I'm not sure I can configure my miners to usewithtor via the GUI interface, and will wait a bit longer before giving the command line a go.

If someone else wants to try, from the FAQ:
cgminer using TOR
    Stratum at difficulty 32: usewithtor ./cgminer -o stratum+tcp://phkttm64gbquasaq.onion:3333 -u myusername -p d=32