Quad9 DNS
IBM's free DNS service focused on security that automatically blocks malicious domains, phishing and botnets.
IPv4:
9.9.9.9 IPv4:
149.112.112.112 Available variants
Security
Primary:
9.9.9.9 Secondary:
149.112.112.112 IPv6:
2620:fe::fe 2620:fe::9 Unfiltered
Primary:
9.9.9.10 Secondary:
149.112.112.10 IPv6:
2620:fe::10 2620:fe::fe:10 With ECS
Primary:
9.9.9.11 Secondary:
149.112.112.11 IPv6:
2620:fe::11 2620:fe::fe:11 Addresses verified on 2026-08-04 against official documentation
Features
- Automatic malware blocking
- Phishing protection
- No user logs
- IBM backed
Protocols
DNSSEC
DoH
DoT
DoQ
DNSCrypt
IPv6
- Operator
- Quad9 Foundation
- Jurisdiction
- Switzerland
- Logs
- No logs
- Best for
- Security without giving up privacy
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