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Quad9 Internet Security & Privacy
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DNS concepts and protocols
All about DNS. What the protocols are, and what they do. Putting the pieces together.
Quad9 Services
All the bits and pieces we do to make your life more secure.
Configuration
How to configure all sorts of things to use Quad9's many services.
Promoted articles
Setup: MacOS and DNS over HTTPS or DNS over TLS
DNS over HTTPS - Windows 11 (Native)
Setup: Quad9 Connect for ChromeOS
Setup: Ubuntu 22.04 LTS
Setup: Linux Mint 20.3 (Cinnamon)
Setup: Chromebook/ChromeOS
Setup: Ubuntu 20.04 LTS
Setup: macOS
Setup: Windows 10
