Doug Madory
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eldomador.bsky.social
Doug Madory
@eldomador.bsky.social
1K followers 290 following 300 posts
Internet Analysis (BGP/NetFlow) at @kentik.bsky.social (formerly of Dyn Research and Renesys).
https://www.linkedin.com/in/dougmadory/
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eldomador.bsky.social
Doug Madory @eldomador.bsky.social · Nov 25
Image is a famous scene from 2001: A Space Odyssey when astronaut Dave Bowman is flying into the Star Gate. But instead of saying, "My god, it's full of stars," this version has him saying "My god, BGP is full of typos."
Reposted by Doug Madory
deutschewelle.dw.com
Access to independent information is under pressure worldwide. Internet shutdowns and censorship have intensified in countries like Iran, Russia and China.

DW has developed DW Access, a lightweight app that helps people stay informed even under the toughest conditions.
December 2, 2025 at 8:54 AM
Reposted by Doug Madory
ooni.org
Over the past few years, we’ve created new OONI tools and resources, and we'd love your feedback!

Please take a few minutes to complete our survey: ooni.org/post/2025-oo...

Thank you! ♥️ Your feedback will help us improve censorship monitoring globally. 🐙

#ooni #censorship #opensource #survey
November 28, 2025 at 11:28 PM
Reposted by Doug Madory
ooni.org
Throttling of Social Media in Türkiye During Protests: An Analysis of OONI Data
ooni.org/post/2025-tu...

Our latest report shares OONI data on the throttling of Twitter/X, Facebook, Instagram, WhatsApp, YouTube, TikTok, and Signal in Türkiye during protests earlier this year.

#turkey #censorship
November 21, 2025 at 4:37 PM
eldomador.bsky.social
Twitter/X coming back after @cloudflare.social's platform-wide outage.

Traffic volume (bits/sec) by source CDN based on @kentik.bsky.social aggregate NetFlow:
November 18, 2025 at 3:40 PM
Reposted by Doug Madory
eldomador.bsky.social
According to @kentik.bsky.social aggregate traffic data, @cloudflare.social 's disruptions began at 11:32 UTC.
November 18, 2025 at 1:40 PM
eldomador.bsky.social
Major Internet content provider Cloudflare experiencing a platform-wide outage disrupting numerous services and websites around the world.

twitter.com currently returns Cloudflare's "Internal server error" page.
November 18, 2025 at 1:13 PM
eldomador.bsky.social
🚀 New on @isoc-pulse.bsky.social — I analyzed 3.5 years of Starlink IP geolocation data. From Gaza to Mars, the results reveal how this network has expanded (and surprised me) around the world.
November 14, 2025 at 6:05 PM
Reposted by Doug Madory
isoc-pulse.bsky.social
Following a platform-wide outage in November 2022, #Starlink published a significantly different IP geolocation file, which included for the planet Mars:

98.97.73.224/27,XX,XX-XY,Mars

Learn more in @eldomador.bsky.social's latest post pulse.internetsociety.org/blog/blast-o...
Blast-Off: 3.5 Years of Starlink’s Growth (Part 2)
Starlink’s IP geolocation data shows the use of the satellite Internet service in isolated and disputed territories, an…
pulse.internetsociety.org
November 11, 2025 at 12:52 PM
Reposted by Doug Madory
ooni.org
‼️ OONI data shows possible social media blocks in #Cameroon amid protests.

If you're in #Cameroon, help verify:
1️⃣ Install OONI Probe: ooni.org/install/mobile
2️⃣ Run test: run.ooni.org/v2/10252

Results will be published: explorer.ooni.org/chart/mat?pr...

#ooni #ooniprobe #opendata #censorship
November 5, 2025 at 11:19 AM
eldomador.bsky.social
It's corn maze season 🎃
November 2, 2025 at 9:16 PM
eldomador.bsky.social
The internet restoration in Tanzania was short-lived. After 1.5 hours, internet service went down again.
October 30, 2025 at 5:41 PM
eldomador.bsky.social
On Oct 29 2025, Azure Front Door suffered a large outage that rippled across Microsoft’s global cloud. It started with a bad configuration push.

Using the newly published Preliminary Post Incident Review, let's discuss what happened and why. 🧵
azure.status.microsoft/en-us/status...
October 30, 2025 at 2:22 PM
Reposted by Doug Madory
eldomador.bsky.social
Internet traffic began returning to normal in Tanzania beginning at 11:39 UTC today following an internet shutdown lasting nearly 26 hours.
October 30, 2025 at 1:46 PM
Reposted by Doug Madory
eldomador.bsky.social
Our thoughts are with the affected provider during this difficult time; we can’t imagine what that must be like.

- AWS, probably
October 29, 2025 at 9:00 PM
Reposted by Doug Madory
eldomador.bsky.social
Latest update on the Azure outage:

We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
October 29, 2025 at 8:11 PM
eldomador.bsky.social
AWS blames "another infrastructure provider" 😁
"There are no issues with AWS services, and all AWS services are operating normally. We are aware that an operational issue at another infrastructure provider may be impacting some customers' applications"
health.aws.amazon.com/health/status
October 29, 2025 at 8:51 PM
eldomador.bsky.social
Latest update on the Azure outage:

We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
October 29, 2025 at 8:11 PM
eldomador.bsky.social
Tanzania is experiencing an internet shutdown beginning at 09:42 UTC (12:42pm local) following violent protests that erupted on the day of its presidential election.

www.theguardian.com/world/2025/o...
October 29, 2025 at 3:55 PM
eldomador.bsky.social
Internet traffic to Jamaica plummets as Hurricane Melissa rumbles through the Caribbean.

Cuba also experienced a decline in traffic volume, according to @kentik.bsky.social aggregate NetFlow data.
October 29, 2025 at 3:43 PM
Reposted by Doug Madory
ioda.live
The impact of Hurricane Melissa in Jamaica is visible in IODA. Active Probing shows steady decline by ~20%. This decline in Internet connectivity appears driven by ISP FLOW Jamaica.

Near realtime Internet connectivity data in Jamaica:
ioda.inetintel.cc.gatech.edu/country/JM?f...
October 28, 2025 at 5:25 PM
eldomador.bsky.social
In the first of a two-part post @isoc-pulse.bsky.social I analyze 3.5 years of IP geolocation data for @starlink, likely the largest store of such data outside the LEO satellite operator itself.

pulse.internetsociety.org/blog/blast-o...
Blast-Off: 3.5 Years of Starlink Growth
pulse.internetsociety.org
October 28, 2025 at 12:47 PM
eldomador.bsky.social
Internet in Cameroon began recovering after a 16-hour disruption that was blamed on a submarine cable outage.
ioda.inetintel.cc.gatech.edu/country/CM?f...
October 24, 2025 at 12:54 PM
eldomador.bsky.social
Internet disruption in #Cameroon beginning at 03:53 UTC earlier today. Reports of a loss of submarine cable connectivity, although the main trunk of WACS seems to be fine.

Traffic volumes to major operators in Cameroon exhibiting odd pulsing behavior.
October 23, 2025 at 2:55 PM
Reposted by Doug Madory
ioda.live
An Internet disruption is ongoing in Cameroon as the country awaits election results. The disruption began at 3:55 AM UTC. Several ISPs are affected. Cause of the disruption is currently unconfirmed but the WACS is reported to have had "an incident."

ioda.inetintel.cc.gatech.edu/country/CM?f...
October 23, 2025 at 11:55 AM
eldomador.bsky.social
🚨UPDATE on PEACE submarine cable break:

Fault location：approximately 1380km from Egypt ZFR CLS (cc: @azizf45)
www.submarinecablemap.com/submarine-ca...
October 22, 2025 at 3:15 PM