quad9

Quad9 is a free, public DNS recursive service focused on security and privacy. It blocks lookups to known malicious domains in real time using threat intelligence from 25+ providers, helping protect devices, IoT, and networks. Operated by the Swiss-based Quad9 Foundation, it emphasizes privacy with no IP logging and GDPR-compliant practices, and it runs a globally distributed network with European hosting and governance.

• Free, public DNS resolver that blocks malicious domains using threat intelligence from 25+ providers
• Supports IPv4 and IPv6 with global anycast deployment; DNS-over-TLS and DNS-over-HTTPS; DNSCrypt option
• Privacy-first: no IP logging; GDPR-compliant
• Not-for-profit with no signup or contracts; simple setup across devices
• Large-scale deployment across 230+ resolver clusters in 110+ countries
• Optional Quad9 Connect app for Android; encryption of queries where supported

• Privacy-centric with no collection of personal data and GDPR-compliant practices
• Broad threat-intelligence partnerships delivering strong protection against malware, phishing, and other threats
• Free to use with easy setup; no sign-up, contracts, or vendor lock-in
• Global, low-latency performance due to wide deployment and anycast routing
• Not-for-profit governance aligned with user interests and public-interest goals

Quad9 is free to use. There is no signup, no contract, and no personal data collection. Donations are welcome to support the project, but there are no paid plans for basic usage.