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关于 Mullvad
Mullvad is a commercial VPN service based in Sweden. The name "Mullvad" is the word for "mole" in the Swedish language. Mullvad operates using the WireGuard protocol. It also supports Shadowsocks as a bridge protocol for censorship circumvention. Mullvad's VPN client software is publicly available under the GPLv3, a free and open-source software license.
来源：维基百科
