https://support.privadovpn.com/kb/article/852-windows-11-setup-for-smartdns-proxy/
Windows 11 Setup for SmartDNS Proxy - Privado
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https://blog.privadovpn.com/what-is-smartdns/
What is SmartDNS? Secure DNS Explained
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https://www.downxia.com/downinfo/515203.html
SmartDNS(智能DNS工具) V0.13.0 官方版下载_当下软件园
SmartDNS是一个运行在本地的 DNS 服务器，它接受来自本地客户端的 DNS 查询请求，然后从多个上游 DNS 服务器获取 DNS 查询结果，并将访问速度最快的结果返回给客户端。
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