June 2 Update: 

The Chinese government is cracking down on VPNs and trying to completely block all unauthorized services. As a result, many well-known VPN services do not work in China at all. This includes many VPN services that are very popular in other countries such as the United States

In the search for a VPN that works in China we have opened accounts with many VPN providers and tested each of them thoroughly. Based on our testing results, we found that the most reliable VPN in China is ExpressVPN. We we repeat our China VPN testing on a regular basis in order to keep our readers up to date on the best VPNs China Internet users can use.