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Solution introduction

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

Quad9 is a free security solution that uses DNS to protect your system against the most common cyber threats. It improves your system’s performance, plus, it preserves and protects your privacy. It’s like an immunization for your computer.

Global Cyber Alliance, Packet Clearing House and IBM worked together to create this new DNS solution. Learn how it works and how to set it up.

How Quad9 works
Quad9 routes your DNS queries through a secure network of servers around the globe. The system uses threat intelligence from more than a dozen of the industry's leading cyber security companies to give a real-time perspective on what websites are safe and what sites are known to include malware or other threats. If the system detects that the site you want to reach is known to be infected, you'll automatically be blocked from entry - keeping your data and computer safe.

Who should set up Quad9?
Setting up DNS filtering requires just a simple configuration change. Most organizations or home users can update in minutes by changing the DNS settings in the central DHCP server which will update all clients in a few minutes with no action needed at end devices at all. The service is and will remain freely available to anyone wishing to use it.

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Cyber & Network Security



Quad9 blocks against known malicious domains, preventing your computers and IoT devices from connecting malware or phishing sites. Whenever a Quad9 user clicks on a website link or types in an address into a web browser, Quad9 will check the site against the IBM X-Force threat intelligence database of over 40 billion analyzed web pages and images. Quad9 also taps feeds from 18 additional threat intelligence partners to block a large portion of the threats that present risk to end users and businesses alike. 

Quad9 systems are distributed worldwide in more than 100 locations at launch, with more than 160 locations in total on schedule for 2018. These servers are located primarily at Internet Exchange points, meaning that the distance and time required to get answers is lower than almost any other solution. These systems are distributed worldwide, not just in high-population areas, meaning users in less well-served areas can see significant improvements in speed on DNS lookups. The systems are “anycast” meaning that queries will automatically be routed to the closest operational system. 

No personally-identifiable information is collected by the system. IP addresses of end users are not stored to disk or distributed outside of the equipment answering the query in the local data center. Quad9 is a nonprofit organization dedicated only to the operation of DNS services. There are no other secondary revenue streams for personally-identifiable data, and the core charter of the organization is to provide secure, fast, private DNS. 


Increase your security, protect your devices, and reduce your risk of becoming a victim of cyber crime.

Increase your security, protect your devices, and reduce your risk of becoming a victim of cyber crime. The robust security protection of Quad9 offers peace of mind that your devices have the same type of first class protection the top businesses use. With Quad9, privacy is one of our highest concerns. No personally identifiable information is collected from your browsing history. We don’t market to you or sell your information to others, as we are a not-for-profit and have no return on investment goal that would cause us to treat end users as revenue sources. 

Business users
Better secure your network, protect your digital assets and customers, reduce the risk of malicious threats such as email fraud, malware and ransomware.

Quad9 provides a robust layer of protection for businesses and organizations of all sizes. By using this platform you are able to take advantage of more than eighteen vetted threat intelligence feeds that provide protection against a wide spectrum of threats. This protection is provided for free and with strong privacy (no ability to report individual IP address activities).

Pilot organizations have seen dramatic reductions in IDS alerts and anti-virus alerts on their systems. If your organization requires or desires reporting on what is being blocked we highly encourage you to investigate commercial vendors who can provide that level of reporting. 

For most organizations, this change is as quick as five minutes. 

The combination of ease of implementation (change your DNS settings, or forward your existing DNS resolvers to our IPs) and basic blocking allows organizations to enjoy a large amount of protection from a basic service for free. 

Key Data

Year launched
Release Frequency
Type of Clients
  • Broker-Dealer
  • External Asset Manager
  • Global Private Bank
  • Independent Financial Advisor
  • Local Private Bank
  • Multi-Family Office
  • Private Client Investment Manager
  • Regional Private Bank
  • Registered Investment Advisor
  • Single Family Office
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Client Regional Presence
  • Africa
  • Asia
  • Caribbean
  • Central America
  • Eastern Europe
  • Middle East
  • North America
  • Oceania
  • South America
  • Western Europe
  • View Others View Less


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