An open DNS recursive service for free security and high privacy.
Quad9 is a free service that replaces your default ISP or enterprise Domain Name Server (DNS) configuration. When your computer performs any Internet transaction that uses the DNS (and most transactions do), Quad9 blocks lookups of malicious host names from an up-to-the-minute list of threats. This blocking action protects your computer, mobile device, or IoT systems against a wide range of threats such as malware, phishing, spyware, and botnets, and it can improve performance in addition to guaranteeing privacy. The Quad9 DNS service is operated by the Swiss-based Quad9 Foundation, whose mission is to provide a safer and more robust Internet for everyone.
How Quad9 DNS protects your privacy
When your devices use Quad9 normally, no data containing your IP address is ever logged in any Quad9 system. Connections can employ encryption if your system supports it, and the entire Quad9 platform has been designed to be GDPR-compliant from the first public announcement in 2017.
Why Quad9 DNS is dedicated to data privacy
Every transaction on the Internet starts with a DNS event. This name lookup reveals critically sensitive data about the person triggering that transaction. The nature of those name lookups has created a strong and dangerous motivation for commercialization of personal data from DNS recursive resolver services. Quad9 is the only large DNS resolver with a founding charter that includes privacy as a primary goal, and the Quad9 team is devoted to the concept of keeping personal data under the control of the end user.
How Quad9 DNS blocks malware
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 cybersecurity 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.
Why Quad9 DNS provides security services
For the Internet to be an effective tool, users must trust their ability to use online services without fear of theft, fraud, or misuse of their devices by criminals. Public and private network operators need protection against malicious use of infrastructure resources and attacks against their users or customers. Quad9’s mission is to improve the security and stability of the Internet to allow everyone to be less vulnerable to risks and more effective in their daily online interactions.
Recommended: Malware Blocking, DNSSEC Validation (this is the most typical configuration)
IPv4
9.9.9.9
149.112.112.112
IPv6
2620:fe::fe
2620:fe::9
No sign-up is required, no account data needs to be given to Quad9, and there is no contract. Quad9 is free to use and collects no personal data about you.
You can configure your router or wifi access point to distribute these settings, which will extend protection to all the elements on your local network including IoT devices, many of which otherwise would not have any anti-malware defenses.
How To Setup Quad9 with Windows
How To Setup Quad9 on Your Mac
Quad9 Connect is Now in open Beta and it is a mobile app allowing the more than 2.5 billion global users of smartphones built on Android to use the free security and privacy driven recursive DNS service to block access to malicious websites and maximize web browsing privacy while using an Android mobile device.
Quad9 Connect is now available on the Google Play Store.
Why Open Beta?
The app has been in testing for several months, but Android is a very diversified platform with a large variety of mobile devices supported. We want to expand our testing coverage to a broader audience. Also, we still have many features on the roadmap before we consider the app finished.
Security
Whenever a Quad9 user clicks on a website link or types an address into a web browser, Quad9 checks the site against a list of domains combined from more than 19 different threat intelligence partners.
Quad9 Connect gives feedback to the user if a referenced site is on the threat list via a notification. The app can work in “walled garden” hotspot signups and works across both Wi-Fi and mobile carrier data networks.
Privacy goes beyond just encrypting your DNS traffic. Privacy is part of the DNA of Quad9. No personally identifiable information (PII) is collected or logged 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.
Performance
Quad9 systems are currently distributed worldwide in more than 140 locations in 82 countries, with an expansion target of 200 locations in total for 2019. These servers are located primarily at Internet Exchange points, meaning the distance and time required to get answers is lower than almost any other solution.