Quad9
A non-profit resolver that blocks domains on threat-intelligence lists.
| Operator | Quad9 Foundation |
|---|---|
| Type | Public DNS service |
| IPv4 addresses | 9.9.9.9 149.112.112.112 |
| IPv6 addresses | 2620:fe::fe 2620:fe::9 |
| Filtering | Blocks known malicious domains |
| DNS over HTTPS | https://dns.quad9.net/dns-query |
| DNS over TLS | dns.quad9.net |
Other addresses from Quad9
| Use | Primary | Secondary |
|---|---|---|
| No blocking (unfiltered) | 9.9.9.10 | 149.112.112.10 |
Live response test
Sends a real DNS query to the provider from our server, over DNS over HTTPS where the provider supports it. This shows whether the resolver is answering now and how fast it is from our location, not from yours.
Frequently asked questions
What are the Quad9 server addresses?
The IPv4 addresses are 9.9.9.9 and 149.112.112.112. The IPv6 addresses are 2620:fe::fe and 2620:fe::9.
What does Quad9 block?
Domains that threat-intelligence feeds have identified as malicious, such as phishing and malware hosts. It does not filter ads or adult content.
Is there a version of Quad9 without blocking?
Yes. 9.9.9.10 and 149.112.112.10 answer every name without blocking.
Who runs Quad9?
Quad9 is operated by a non-profit foundation based in Switzerland.
Does Quad9 support encrypted DNS?
Yes: DNS over HTTPS at https://dns.quad9.net/dns-query and DNS over TLS at dns.quad9.net.