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▸ Blog

Blog

Quad9 and KanREN Partner to Strengthen Cybersecurity in Educational Networks

Quad9, a leading global DNS security provider, has announced a strategic partnership with KanREN, the pioneering research and education network serving Kansas’s institutions, to enhance cybersecurity protections for students, faculty, and researchers. This collaboration will bring Quad9’s robust threat-blocking DNS service to KanREN’s network, safeguarding educational institutions from cyber threats and malicious attacks.

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Blog

Best Ways to Find Quad9

Quad9 is expanding its presence to open-source social platforms to keep our fans, users, and champions updated. To keep current with Quad9 updates, we'd ask for you connect with us on Mastodon and Bluesky for all future updates and engagement. Come find us there, tell all your friends, and thank you for your continued support!! P.S. You can still find us on LinkedIn and Facebook ;-)

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Blog

Trends H2 2024: 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 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 and privacy. This blogpost provides security insights on the threats blocked by [Quad9 DNS](https://quad9.net/) between July and December 2024\. The report combines DNS telemetry data and open-source intelligence with statistics and analysis to provide security insights on the top malicious domains visited by our users and blocked by Quad9 DNS. Additionally, the post presents key regional threats targeting Quad9 users.

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Blog

How Quad9 Handles Your Data | 2025

I’m John Todd, the General Manager of Quad9, and I want to address a few points about who we are and why we exist for the purpose of giving some background about what we do with your personal data. TL;DR: We don’t even collect your personal data, let alone do anything with it.

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Blog

Why You Should Be Using a Privacy-Centric DNS Service in 2025

*January 2025 — *We’re at that point in the story of technological advancements where the digital landscape is evolving at breakneck speed. However, with this rapid digitalization of personal information, data privacy has become more crucial than ever. Gone are the days of the late 90s when Internet users could largely ignore how their browsing habits were being tracked and exploited. Throughout 2025, the need for greater security and privacy online will be undeniable — *especially at the foundational level of our Internet connections: the Domain Name System (DNS)*. Security and privacy-centric DNS services are not just a fringe solution reserved for the tech-savvy. They are now an essential part of any modern Internet user’s toolkit. This month, we will discuss the risks of ignoring this critical layer of protection, the benefits for individuals, businesses, and society at large, and why using a privacy-centric DNS service in 2025 should be standard operating procedure for anyone with a connected device.

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Blog

How Quad9 DNS Can Safeguard Your Holiday Shopping

The holiday shopping season is upon us and with it comes a surge in online activity. Unfortunately, this increased online traffic also presents a prime opportunity for cybercriminals to exploit vulnerabilities and steal sensitive information. To protect our users, Quad9 blocks DNS lookups of malicious host names from an up-to-the-minute list of threats.

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Blog

Quad9 JSON-based DNS service retires 5 May, 2025

Quad9 is sunsetting our JSON-based DNS lookup service on TCP port 5053, and will retire the service on 5 May, 2025. We encourage any users of this system to migrate to DNS-over-HTTPS (DOH) on port 443 or DNS-over-TLS (DOT) on port 853, both of which use IETF standards for DNS delivery in a secure manner.

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Blog

Staff Highlight: Babak Farrokhi

At Quad9, we aim to show appreciation for the dedication of our staff and their contributions to the growth and health of the organization by showcasing quarterly staff highlights. This quarter, we are featuring Director of Operations, Babak Farrokhi.

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Rack of servers and networking equipment, lit with white light from the back.
Blog

Trends H1 2024: 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 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 and privacy. This blogpost provides security insights on the threats blocked by Quad9 DNS between January and June 2024. The report combines DNS telemetry data and open-source intelligence with statistics and analysis to provide security insights on the top malicious domains visited by our users and blocked by Quad9 DNS. Additionally, the post presents key regional threats targeting Quad9 users.

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Rack of servers and networking equipment, lit with white light from the back.
Blog

Quad9 Cyber Insights: from Malawi

Quad9's Post-Deployment Observations of Malawi's Cybersecurity Landscape. Quad9 is a global DNS service that offers enhanced cybersecurity measures, privacy protection, and improved Internet performance. Quad9's arrival in Malawi marks a pivotal advancement in fortifying the country's digital infrastructure, bringing with it enhanced cybersecurity safeguards, robust privacy protection, and a boost in Internet performance.

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