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Add DNS security to your network.
Free, fully managed, and simple to deploy.

Quad9 gives network operators a proven DNS security layer for their end users — at no cost, with very little overhead. Eliminate botnet command and control traffic from your network, offload DNS complexity to specialists, and protect your organization from data inquiries. Quad9 handles the infrastructure. You offer the benefit.

Get Started

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Value-Add for Your End Users — at No Cost

Deploy Quad9 as a DNS resolver for your network and your end users automatically benefit from security, privacy, and performance. Free, with very little operational overhead. The complexity level is low — Quad9 manages the infrastructure.

See how to deploy
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Eliminate Botnet C&C Traffic from Your Network

By routing DNS through Quad9, you remove your customers and users as a potential source of botnet command and control systems. Quad9 blocks access to known malicious domains — including botnet infrastructure — before connections are established.

How threat blocking works
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Compliance and Privacy Protection

Quad9 operates under Swiss Federal Data Protection law — raising the global bar on privacy standards. No personal data is collected. Forwarding DNS to Quad9 protects your organization from data inquiries that would otherwise require you to produce user DNS records.

Read about privacy
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DNS Complexity, Fully Managed

Managing DNS infrastructure is increasingly complex. Quad9’s sole purpose is managing DNS servers — it’s all we do. By forwarding recursive resolution to Quad9, your team offloads that complexity to specialists with infrastructure across 260+ locations in 115+ countries.

View Quad9 locations

DNS management
is all we do.

Network operators face growing complexity in managing recursive DNS infrastructure — keeping pace with security threats, privacy requirements, and global performance demands. Quad9 exists solely to manage DNS servers. That singular focus means your end users get security and reliability backed by 35+ threat intelligence partners and infrastructure at 260+ locations worldwide — while your team focuses on running your network.

Contact us to discuss deployment

Forward your recursive
DNS to Quad9.

Why a network operator should use Quad9:

Become a sponsor

Point your resolvers to 9.9.9.9 (IPv4) or 2620:fe::fe (IPv6)

or choose from Quad9’s service configurations for DNSSEC, ECS, DoH, DoT, or DNSCrypt.

Deploy across your full network or a specific segment

Quad9 scales to any size.

Support the mission

Quad9 is a nonprofit funded by grants and sponsorships. If Quad9 protects your network, consider becoming a sponsor.

Tools & Resources

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Service Addresses & Features

Quad9 has several service configurations for recursive DNS — each with its own IP address. Choose the one that fits your setup, including options for standard security, DNSSEC validation, and encrypted DNS (DoH, DoT, DNSCrypt).

View service addresses

Quad9 Locations

Quad9 operates 260+ resolver locations in 115+ countries. Your device is automatically routed to the nearest one for the fastest possible response.

View Quad9 locations

Search Blocked Domains

Look up any domain to see whether Quad9 is blocking it. Useful if a site isn’t loading and you want to know why.

Search blocked domains

Set Up Guides

Step-by-step instructions for setting up Quad9 on your router, computer, phone, or other device. Most setups take under five minutes.

Learn more

Check Your Status

Verify that your device is actually using Quad9 for DNS resolution. A quick check to confirm your setup is working correctly.

Check your status

Quad9 Status

Real-time operational status for Quad9’s infrastructure. Check here if you’re experiencing connectivity issues.

View Quad9 status

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