Quad9DNS

Quad9 is a free service that replaces your default ISP or enterprise Domain Name Server (DNS) configuration.
9.9.9.9 | 149.112.112.112
2620:fe::fe | 2620:fe::9
support@quad9.net
uptime.quad9.net/#

Quad9DNSquad9dns
2025-06-11
"Making the internet predictably safer" titles this image of an infinity loop design which surrounds the BforeAI logo on the left and the Quad9 logo on the right. The loop is divided into 5 sections with different colors to describe the collaboration between the two organizations, as follows: 1) PreCrime Intelligence predicts; 2) PreCrime Intelligence disrupts and shares; 3) Quad9 blocks; 4) Automatically protects; and 5) Quad9 provides telemetry data.
Quad9DNSquad9dns
2025-06-10

Check out our Lightning Talk tonight (17:50 MDT) at on Open, Free, Secure DNS

nanog.org/events/nanog-94/agen

Quad9DNS boosted:
Aleksandra 🇪🇺heartshadows@vivaldi.net
2025-06-08

@bsdphk also for people who don't like the fact that DOH need bootstrap dns to work many privacy / security dns provide ip that work without it : example @quad9dns work over (no bootstrap needed) they also work with dnscrypt that work without requiring this bootstrap too :
https://9.9.9.9/dns-query
https://149.112.112.112/dns-query

dns.sb also provide it

Quad9DNSquad9dns
2025-06-06

Give us a shout if you'll be at next week! Quad9 will be there!🏔️ ✈️

Quad9DNSquad9dns
2025-06-04

A quick look at our Newly Observed Domain data over the last 30 days says that there have been more than 6,000 domains containing the string 'dns' which have seen for the first time- it appears that the is a fairly popular topic to reference in domain names. Who knew?

Quad9DNSquad9dns
2025-05-29

@gcvsa @internetsociety We don't often appear on charts since we don't originate from a single ASN like the others, even though we believe we're one of the largest open resolvers that exists. Our network is much more broadly distributed than most & we use partners for our backhaul instead of appearing as a single monolithic network that's easy to measure. The article tho speaks directly to our situation - see recent blog quad9.net/news/blog/the-public and our issues in France quad9.net/news/press/quad9-fac

Quad9DNSquad9dns
2025-05-28

@rapha3l @marcel @abuse_ch Quad9 does not have the authority to take down domains, however, if they are included in the block lists of our 30+ threat intelligence providers, users will be protected from reaching those sites.

Quad9DNSquad9dns
2025-05-22

The "Globe of Wonder" (GoW 😻) is certainly living up to its name - making an appearance with our CTO at last week!

Quad9 CTO, John Todd, presenting the Globe of Wonder at GC3B in Geneva last week.
Quad9DNSquad9dns
2025-05-15

@qwertz Then it up to our community to educate them! We're trying!

Quad9DNSquad9dns
2025-05-15

Glad to see someone is taking notice!
Could the plaintiffs please redirect their effort to the people actually committing the crime? 🤷‍♀️
@torrentfreak

torrentfreak.com/wrong-logo-no

Quad9DNSquad9dns
2025-05-15
WaveX and Quad9 logos overlaying a mustard-yellow outline of Kenya, on a white background
Quad9DNSquad9dns
2025-05-13

@neurovagrant thanks!!

Quad9DNSquad9dns
2025-05-13
Logos of Quad9, the University Corporation for Atmospheric Research, and Front Range GigaPOP appearing like notes pinned to a cork board.
Quad9DNS boosted:
2025-05-13

Today we are very proud to announce the new Internet Pollution Index, a new tracker that visualizes global cyber threat activity in real time, helping network operators, policymakers identify and mitigate malicious Internet behavior.

"After seeing what #MANRS has done for improving #RoutingSecurity, I am optimistic that we can find some common agreed norms for how you find and stop this nonsense in your network before it attacks somebody else, before it trashes the reputation of your IP addresses, and before we have a mess in the Internet."

That was Leslie Daigle's final message to the RIPE NCC community at #RIPE90, after presenting the #InternetPollutionIndex and GCA's work around the #AIDE project.

Interested? Read below:

globalcyberalliance.org/intern

Quad9DNSquad9dns
2025-05-13

We found one of our friends from @globalcyberalliance at today!

If you missed Leslie Daigle's presentation, you can enjoy it here!

ripe90.ripe.net/archives/video

GCA's CTO, Leslie Daigle's presentation at RIPE90 in Lisbon.
Quad9DNSquad9dns
2025-05-13

Proof of Quad9 life (sort of) at - at least we think @f0r573r is behind the camera...looking forward to the presentations and discussions this week in Geneva 🇨🇭!

Photo from the audience of the Opening Ceremony at GC3B in Geneva.
Quad9DNSquad9dns
2025-05-12

We're also at this week! Making the European rounds with the team at as well! 🌐 ✈️

Quad9DNS boosted:
2025-05-12

When #FlaxTyphoon reports emerged, we examined whether its activity was detectable within AIDE, GCA’s #cybersecurity intelligence platform that monitors global network traffic, detects potential threats, and delivers actionable insights to improve network security.

Our analysis revealed behavioral signals and infrastructure overlaps consistent with Flax Typhoon’s tactics—including VPN tunneling, web shell traffic, and credential-based reconnaissance—across sensors located in Taiwan, the United States, Europe, and East Asia.

Key action items for every network operator to take to reduce risk and strengthen network integrity:

👁️ Monitor for unauthorized access attempts and abnormal service behavior.

💪 Strengthen routing security by implementing Mutually Agreed Norms for Routing Security (MANRS) best practices and validating route origins with #RPKI.

🤝 Join collaborative intelligence efforts like AIDE, where shared visibility enables shared defense—and actionable data drives real-world mitigation.

Read more in Meghal Donde's insightful and data-packed post: globalcyberalliance.org/flax-t

Client Info

Server: https://mastodon.social
Version: 2025.04
Repository: https://github.com/cyevgeniy/lmst