A widespread power outage in #Jamaica is impacting #Internet traffic from the island. @CloudflareRadar shows traffic fell ~0200 UTC, with the largest impact to FLOW Jamaica. The provider acknowledged the issue in a Facebook post. radar.cloudflare.com/traffic/jm?d... www.facebook.com/FlowJamaica/...

In a Facebook post, Syria's Ministry of Communications & Information Technology announced that there will be no communication cuts during the general exams this year, in contrast to #Internet shutdowns implemented in past years. www.facebook.com/SyMOCAIT/pos... www.google.com/search?q=syr...

🧵Some additional perspectives on the (limited) restoration of #Internet connectivity in #Iran on May 26: Based on request traffic to the @cloudflare.social 1.1.1.1 resolver, the rank of the .ir ccTLD has jumped from #144 on May 25 to #96 on May 28. radar.cloudflare.com/tlds/ir?date...

Cable damage has taken Digicel Haiti completely offline, as @radar.cloudflare.com shows that #Internet traffic and announced IP space all fell to zero just after 22:00 UTC (18:00 local). Similar problems occurred multiple times in 2025. radar.cloudflare.com/traffic/as27... x.com/jpbrun30/sta...

Just to keep today's partial restoration of Iranian internet connectivity in perspective, please take a look at this overall timeline. Iran has a long way to go to get back to pre-Jan-8 levels of traffic volumes. #DigitalBlackOutIran‌

Traffic data from @radar.cloudflare.com shows a rapid increase in traffic from #Iran starting ~11:00 UTC (14:30 local). Traffic from providers including #Irancell, #MCCI, and #TCI is up significantly. radar.cloudflare.com/traffic/ir?d...

Exam season in #Iraq started today, and with it, widespread #Internet shutdowns. Connectivity was cut across multiple major ISPs between 0300-0430 UTC, though networks in the Kurdistan Region remained available. radar.cloudflare.com/traffic/iq?d...

I was one of the 1100 impacted by yesterday's layoff at Cloudflare. Thankful that I had the opportunity to work on @radar.cloudflare.com over the past 4+ years, evolving it into a trusted industry resource. Would love to continue working with #Internet data in my next role...

DNSSEC failure broke the .de TLD, risking millions of German domains. See how 1.1.1.1 used "serve stale" and Negative Trust Anchors to restore resolution during the incident. Read the full technical breakdown. https://cfl.re/4we2Nsz

May 5 .de DNSSEC issues as seen through 1.1.1.1 Resolver data on Radar: - Increased DS record request traffic share, from <1% to >10% - Increased SERVFAIL response share, from <2% to 50% - ~4x increase in query volume - >80% drop in certificate issuance radar.cloudflare.com/tlds/de?date...

Gov’ts continue to shut down the internet during school exams, claiming it prevents cheating. There’s no evidence it works. But there’s clear evidence it violates rights + cuts people off from essential services. Here’s what’s on our watch list for 2026 🔽 www.accessnow.org/campaign/no-...

More great new updates to @radar.cloudflare.com -- check out the whole thread!

Country level announced IP address space graphs now include a "Show top ASes" toggle. Stacked area graphs make it easier to identify the providers behind large address space withdrawals. Example: radar.cloudflare.com/routing/ir?d...

🚨 More new routing insights on Radar! Track #RPKI ROA deployment history at a global/country/ASN level, going back 3+ years for valid prefixes & address space radar.cloudflare.com/routing/rpki...

The Cloud Observatory on Cloudflare Radar has been updated: -Platform-level connection metrics on the landing page -Provider pages show connection metrics for the top 5 fastest/slowest regions -Region pages show connection metrics as %ile distributions radar.cloudflare.com/cloud-observ...

Interested in owning your own Top-Level Domain (TLD)? The #ICANN New gTLD Program: 2026 Round is now open -- newgtldprogram.icann.org/en For more information about existing TLDs, or popular non-delegated TLDs, check out Radar's TLDs page at radar.cloudflare.com/tlds

🕶️ New on Cloudflare Radar: DARK MODE support! A theme selector in the upper right corner of the page now lets users explicitly choose light mode or dark mode, or to follow the system setting. The choice can be applied to shared and embedded graphs as well.

The first quarter of 2026 saw a surge in Internet disruptions, from nationwide shutdowns in Uganda and Iran to unprecedented drone strikes on cloud infrastructure. We explore the data behind these events using Cloudflare Radar. https://cfl.re/4cJz8yJ

From War to Sovereignty: The Normalization of Tiered Internet in Iran

On February 28, the #Internet was shut down in #Iran for the second time in 2026. Two months later, it remains largely unavailable. However, increased allowlisting of external sites, and availability of "Internet Pro" access has driven nominal increases in traffic visible in the back half of April.

The IODA team and Project Ainita have documented a measurement-based perspective of the ongoing shutdown cutting Iran off from the global Internet. The Iranian regime has morphed a "stealth Internet blackout" from June 2025 into a new Internet. ioda.inetintel.cc.gatech.edu/reports/from...

Interesting observation: Sunday-Thursday each week, between 0900-2000 UTC, Googlebot appears to ramp up its crawling of plain text files. A similar pattern is visible for JavaScript files as well, Monday-Thursday, between 1600-1200 UTC. radar.cloudflare.com/bots/directo...

We love seeing @radar.cloudflare.com data cited in research papers and other publications. In support of that, shareable widgets on Radar now contain a "generate citation" icon in the action bar, featuring BibTeX, APA, MLA, Chicago, and RIS styles.

A recent target of airstrikes, Sharif University of Technology (AS12660) went offline at 23:12 UTC (2:42am local) today. apnews.com/video/ict-bu... @ioda.live view: ioda.inetintel.cc.gatech.edu/asn/12660-IR...

It is a teeny increase, but in recent weeks Cloudflare Radar now shows #ipv6 crossing the 40% proportion threshold in traffic. It has been hovering at 39% for awhile. We'll just have to wait and see if that is the new floor. https://radar.cloudflare.com/adoption-and-usage#ipv4-vs-ipv6

We've also extended bot traffic visibility on Radar to support sub-national filters. Radar now shows bot traffic trends and which networks generate the most bot traffic from your state/region. Examples: radar.cloudflare.com/bots/2267056 radar.cloudflare.com/bots/5549030

Cloudflare Radar is a rich source of BGP and routing insights and data. To recognize its importance, we've broken out "Routing" into its own section, featuring Overview, RPKI, and Anomalies pages, with more to come very soon. Explore for yourself at radar.cloudflare.com/routing

Last 24 hours to pledge for a copy of “Flong Time, No See,” my new book, or get unique letterpress and printing artifacts! www.kickstarter.com/projects/gle... The book is about printing history through the lens of technology and often-forgotten people who did the work.

Iran is currently enduring its longest-ever internet shutdown, which began shortly after the Feb-28 airstrikes. My latest post covers all of 2026, outages within the whitelisted traffic, and other observations from our data. #DigitalBlackOutIran‌ www.kentik.com/blog/interne...

🌍 Small i18n improvement: If you are using Radar in a language other than English, we now display translated geolocations (geonames alternate names) where available. For example, see radar.cloudflare.com/pt-pt/traffi... or radar.cloudflare.com/ja-jp/traffi...

Speed test results are now shared between speed.cloudflare.com and radar.cloudflare.com/speedtest. Detailed results are shown on Speed, while summary and country/network comparisons are shown on Radar, and users can now easily switch between the two views.

The latest #Internet shutdown in #Iran has now entered its 7th day. Traffic remains well under 1% of previous levels. The distribution of remaining traffic by ASN has shifted significantly since the shutdown was implemented. radar.cloudflare.com/traffic/ir radar.cloudflare.com/explorer?dat...

Having started my career at BBN, and being a big fan of @glennf.com's work, this discovery is 🤯

🆕 on Cloudflare Radar: a lightweight network quality test measuring upload/download speeds and idle/loaded latency. 📈 It also shows how your results compare to the averages for your your country/region and ISP. ➡️Try it out at radar.cloudflare.com/speedtest

Learn more about the new security insights available on Cloudflare Radar in our latest blog post.

65% of client HTTPS request traffic is post-quantum encypted. But what does server-side PQ support look like? A new Radar graph tracks PQ support across customer origins, and a new tool enables users to test any Web server for PQ support. Learn more at radar.cloudflare.com/post-quantum

We're now publishing Key Transparency audit data for E2EE messaging apps on Cloudflare Radar, showcasing the Key Transparency logs that Cloudflare audits, providing a window into the health and activity of these critical systems. Learn more at radar.cloudflare.com/key-transpar...

#ASPA is an emerging standard intended to help further improve routing security. You can now track ASPA deployment at a global, country/region, and ASN level on Cloudflare Radar, including real-time searching for ASPA entries. Explore it at radar.cloudflare.com/routing#rpki... #RPKI

Cloudflare Radar has added new tools for monitoring PQ adoption, KT logs for messaging, and ASPA routing records to track the Internet's migration toward more secure encryption and routing standards. https://cfl.re/4tY6GB0

My conversation with @henrihelvetica.bsky.social is now available for on-demand viewing. We covered a broad range of Internet-related topics, including the @radar.cloudflare.com Year in Review. Check out SPDY STREAM 023 at youtube.com/watch?v=K58J...

Nice interview w/ @dbelson.com about what the internet is all about in 2026, and how complicated it has grown: from growth, to geo-political realities, to wondering whether you're dealing with humans or not. nexttechtoday.com/people/qa-wi...

In which I discuss Internet resilience, outages, AI traffic, and the challenge of turning real-time data into true understanding: Cloudflare’s Data Chief on the Internet’s Fragile Future nexttechtoday.com/people/qa-wi... via NextTech Today

#SuperBowlLX featured many creative ads, and as we have done in the past, we used aggregated, anonymized 1.1.1.1 DNS Resolver traffic to identify some of the most popular ones. Traffic growth was calculated by comparing request volume to a pre-game average baseline. 🧵below:

Dave Farber has passed away | Discussion

Today marks 4 weeks since the #Internet disruption in #Iran began. While traffic to Cloudflare has returned to pre-shutdown levels over the last several days, general Internet connectivity remains filtered and limited by allowlists. radar.cloudflare.com/traffic/ir?d...

Join us tomorrow!

It me!

✨ SPDY STREAM 023 ✨ w/ @dbelson.com of @cloudflare.social, Head of Data and Insights. We are excited to welcome David in discussing the recently released @radar.cloudflare.com 2025 Year in Review! Join us! ✨ SPDY STREAM 023 ✨ 📆 Wed Feb 4th 2026 ⏰ 1pm EST, 10am PST 🔗 www.youtube.com/live/R-j3HrE...

My latest for the @cloudflare.social blog, looking at Q4 2025 Internet outages and disruptions as seen through @radar.cloudflare.com data and graphs.

Today’s reminder that I am old.