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Internet Security
& Privacy

In a Few Easy Steps

Quad9* is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.

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Quad9: image of a woman looking at her computer with 9 triangle cut out with white borders and once piece is shaded pink.

Privacy. Security.
Integrity.

An open DNS recursive service for free security and high privacy.

About Us

Why Quad9

Quad9 is the only large DNS resolver with a founding charter that includes privacy as a primary goal, our organization is focused on helping keeping personal data under the control of the end user.

Feature

With Quad9

Without Quad9

Privacy by law

IP addresses never logged, Swiss legal protection

Malware blocking

Domains flagged for malware, viruses, adware blocked

Phishing & scam protection

DNS requests to known phishing domains blocked

Encrypted DNS transport

DoT, DoH, and DNSCrypt supported

Non-profit, no ads

No monetization of DNS queries or user data

Global anycast network

200+ locations worldwide for low-latency resolution

“Without” reflects typical ISP or default DNS resolvers. Secure service address: 9.9.9.9

670M

Average Daily Blocks
230+
Resolver Clusters in over 110 countries

25m

Threat Intelligence Providers
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Get Started with quad9

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Tools & Resources

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Service Addresses & Features

Quad9 has several different service offerings for recursive DNS features. Each is represented by a different IP address (or, in some cases, hostname), which you use to configure your systems.

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Quad9 Locations

Quad9 systems are distributed worldwide in more than 200 locations in 90 nations, with extensive further expansion scheduled. Quad9 has servers located primarily at Internet Exchange points, which are where the highest concentration of interconnections occur within a typical region between networks.

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Search Blocked Domains

Search a domain to see if we are blocking it.

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Set Up Guides

Setting up Quad9 takes only a few minutes and is a very straightforward process. We offer setup guides for individual devices as well as full networks.

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Check Your Status

Are you protected by Quad9? The quickest way to confirm you’re using Quad9 is to visit https://on.quad9.net

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Quad9 Status

Search a domain to see if we are blocking it.

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The Latest

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DNS Forwarder Best Practices

Overview You're administrating DNS for a building, office, business, ISP, etc, and you want to use Quad 9. Great choice!...
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DNSSEC NTAs: No Good Compromises

Summary Quad9 believes that DNSSEC is required for a secure DNS and will only implement Negative Trust Anchors (NTAs) for...

Trends H2 2025: Cyber Insights

To protect our users, Quad9 blocks DNS lookups of malicious host names from an up-to-the-minute list of threats. This blocking...

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