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Quad9 ✓ Verified
Free, non-profit DNS resolver with built-in threat blocking. Swiss-based. No personal data logged.
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About Quad9
Quad9 is a free, non-profit DNS service that blocks malicious domains using threat intelligence from 25+ providers. Based in Switzerland for strong privacy protections. Does not log personal data or IP addresses. Simple to set up — just change your DNS to 9.9.9.9.
Key Features
✓ Free non-profit DNS service
✓ Blocks malicious domains automatically
✓ Swiss jurisdiction — strong privacy laws
✓ No personal data or IP logging
✓ Threat intelligence from 25+ providers
✓ DNS-over-HTTPS and DNS-over-TLS
✓ DNSSEC validation
✓ Global anycast network for speed
✓ Simple setup — just use 9.9.9.9
✓ Supports ECS for CDN optimization
Who Is It For?
Everyone. Quad9 is the easiest DNS upgrade — just change your DNS server to 9.9.9.9 for free malware blocking and privacy.