Actually I don't know if it is accessible or blocked, if it is blocked you can use VPN service for bypassing the Great Firewall of China easily, I used this VPN service https://www.vpnfaqs.com/2015/06/openvpn-china-conceal-connection-now/ for all my online usage when I were in China.
General help
Can Moodle sites be accessed from China?
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