Quad9 is an open DNS recursive service that blocks lookups of malicious host names to protect users against threats such as malware and phishing. The service aims to improve online security and privacy without logging personal data.

Quad9

Quad9 DNS | 2,351 followers on LinkedIn. Security. Performance. Privacy. | Quad9 is a free security solution that uses DNS to protect your system against the most common cyber threats. It improves your system&#39;s performance, plus, it preserves and protects your privacy. It&#39;s like an immunization for your computer. 

Executive Director at Packet Clearing House

Bill Woodcock

Daniel Erasmus

John Todd

Martin Leuthold

Quad9 DNS

We're excited to announce the receipt of critical funding from Craig Newmark Philanthropies to continue and further our work to improve the #security and stability of the Internet through our #DNS services, as part of CNP's commitment to #CyberCivilDefense . https://lnkd.in/emPF4vHD #privacy

We're proud to support #MoreThanAPasswordDay and the updated Common Guidance on #Passwords . Let's make the Internet a safer place for all. https://lnkd.in/eudyg9YV

Common Good Cyber is trying to create options for non-profit cybersecurity organizations, helping connect funding sources with matching organizations. Quad9 is in process with them to try to work on making connections, and I was pleased to do this interview. Finding funds for long-duration service-based organizations is a real challenge. Doing good by protecting people online is inexpensive, but isn't free. I'm interested in hearing your ideas of how to bridge the gap as we grow.

Congratulations to our friends at i3D.net !

Quad9's participation in Nonprofit Cyber is a natural match for our cybersecurity mission. We can't imagine a better set of peer organizations and leaders, and it is with great enthusiasm that we look forward to working with all members of the coalition in helping make the Internet safer, more trusted, and available to all. ~ John Todd , General Manager, Quad9 #DNS #privacy #security

The #Quad9 team loves using Gliffy , and we are especially appreciative of their support for nonprofits! 🙏

Cyber Insights H1 2024! The latest from our Director of #ThreatIntel Emilia Cebrat-Maslowski . https://lnkd.in/ecU2RvHU #DNS #security #privacy

Another great partner to welcome to the Quad9 community! Security is a team effort, and maintaining privacy is our shared mission. #DNS #security #privacy

We're excited for this new partnership with Criminal IP to increase the protection of our Quad9 user community! #DNS #security #privacy

NEWS UPDATE! Criminal IP and Quad9 Collaborate to Exchange Domain and IP Threat Intelligence https://lnkd.in/esgMcz9y AI Spera #threatintel #DNS #security #privacy

Quad9 Connect

Dodge

Google Maps

Font Awesome

Mobile Non Scaleable Content

Cloudflare CDN

Cloudflare Hosting

jsDelivr

CrUX Top 50m

CloudFront

IIS 10

Ubuntu

Chief Technology Officer, Co-Founder

Corey Mosher

Business Management

Jeri McNeill

General Manager

Head of Product Security

Andre Ludwig

Network Engineer

Megan Schleifer

Nadia Alter

Chief Executive Officer

Zürich Companies With Fewer Than 100 Employees

Network Security Companies With Fewer Than 100 Employees (Top 10K)

Zurich Companies With Fewer Than 1000 Employees

Security Companies With Fewer Than 1000 Employees (Top 10K)

Quad9 is a security solution company that uses DNS to protect your system against the most common cyber threats.

Computer and Software Services and Scientific Services

Zürich

Zurich

Switzerland

Europe

Criminal IP and Quad9 Collaborate to Exchange Domain and IP Threat Intelligence

InQuest Partners with Quad9 to Enhance Global DNS Security through Advanced Threat Intelligence

DNS Resolver Quad9 Wins Pirate Site Blocking Appeal Against Sony

Public DNS Servers: Enhancing Internet Experience

Quad9 Blocks Pirate Site Globally After Sony Demanded €10,000 Fine

DNS Resolver Quad9 Loses Global Pirate Site Blocking Case Against Sony

Sony vs. Quad9: Court Hears Landmark DNS Piracy Blocking Case

Quad9 Appoints CEO Nadia Alter to Drive Policy and Global Initiatives

Quad9 DNS coverage gets a boost in Europe through i3D.net partnership

Bfore.ai Partners With Quad9 To Provide Predictive DNS Cybersecurity Protection

United States

North America

El Salvador

Ecuador

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Asia

Brazil

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