Understanding the Great Firewall
How China's internet censorship system works and why you need a VPN
Deep Packet Inspection
The Great Firewall uses advanced DPI technology to identify and block VPN traffic. Standard VPN protocols are easily detected and blocked, requiring specialized obfuscation.
IP Address Blocking
Known VPN server IP addresses are constantly identified and blocked. VPN providers must regularly rotate their server IPs to maintain connectivity in China.
Dynamic Blocking
Censorship intensity varies by location, time, and political events. What works in Beijing may not work in Shanghai, and connections may be more restricted during sensitive periods.
Protocol Filtering
Common VPN protocols like OpenVPN and IKEv2 are actively filtered. Success requires VPNs with specialized protocols designed to look like regular HTTPS traffic.
Major Sites & Services Blocked in China
Popular Western websites and services that require VPN access
YouTube
BBC
Netflix
Dropbox
Telegram
NYTimes
Best VPNs for China (2025)
Proven VPN services that consistently work in China with obfuscation technology
ExpressVPN
NordVPN
Surfshark
VyprVPN
Essential Setup & Security Tips
Expert advice for staying connected and secure in China