If you’ve traveled to China you’ve probably faced the “great firewall,” where access to many websites is blocked. This includes Google, Facebook, Twitter, etc. Fortunately getting around these blocks is quite easy using a VPN — Tiffany wrote a post about exactly this a while back.
A VPN (virtual private network) allows you to connect to the internet using another network, so it looks like you’re accessing the internet from somewhere else. This allows you to access websites that are typically blocked in China.
VPN use is extremely common China, to the point that I suspect most millennials in major Chinese cities use them. Clearly the government is aware of this, though they haven’t done that much to crack down on usage.