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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 2025.

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 Senior Operations Engineer, Michał “rysiek” Woźniak.

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. In this blogpost, we want to cover crypto-related threats that we protect our users from.

WaveX, a leading ICT infrastructure provider in Africa, has joined forces with global DNS security leader Quad9 to bolster Internet resilience, speed, and safety across Kenya. As the official infrastructure sponsor for Quad9 in the region, WaveX is now hosting DNS nodes in Nairobi and Mombasa, bringing critical cybersecurity infrastructure closer to home.

Quad9 is pleased to announce that our 9.9.9.11 (ECS) service is now validating domains which sign with the Ed25519 algorithm.

We know many of our Android users have been asking for updates about the status of Quad9 Connect, our Android app. Well, we’re pleased to announce Quad9 Connect 1.0 has been released and is now available in F-Droid: https://f-droid.org/en/packages/com.quad9.aegis/

Government control over DNS is more than a regulatory shift; it’s a direct threat to the freedom, privacy, and security of every Internet user. When authorities dictate how DNS operates, the consequences extend far beyond blocked websites. Censorship silences dissent, surveillance strips away privacy, security gaps put users at risk, and legal overreach tightens control over what should be an open and unrestricted space. Neutral, independent DNS providers serve as a safeguard against these dangers. By maintaining a system free from political influence and resistant to government-imposed restrictions, neutral DNS providers ensure users can access the web without interference.

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 our Director of Threat Intelligence, Emilia Cebrat-Maslowski.

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.

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 ;-)