Tailscale is a zero-config VPN built on WireGuard that allows secure private networking among devices and VMs across public internet via peer-to-peer connections and NAT traversal.

Tailscale coordination servers are global and blocked intermittently from China, impacting key exchange and mesh negotiation. However, Tailscale supports self-hosting a control plane, allowing reliable operation when using domestic coordination servers.

The information regarding service availability in China is provided for general reference purposes only. Due to the dynamic nature of network conditions and regulatory environments, the actual accessibility of these services may vary over time and by location. Users are advised to verify the current status independently.