Doug Madory
@eldomador.bsky.social
Internet Analysis (BGP/NetFlow) at @kentik.bsky.social (formerly of Dyn Research and Renesys).
https://www.linkedin.com/in/dougmadory/
https://www.linkedin.com/in/dougmadory/
Pinned
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:
Traffic volume (bits/sec) by source CDN based on @kentik.bsky.social aggregate NetFlow:
November 18, 2025 at 3:40 PM
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:
Traffic volume (bits/sec) by source CDN based on @kentik.bsky.social aggregate NetFlow:
Reposted by Doug Madory
According to @kentik.bsky.social aggregate traffic data, @cloudflare.social 's disruptions began at 11:32 UTC.
November 18, 2025 at 1:40 PM
According to @kentik.bsky.social aggregate traffic data, @cloudflare.social 's disruptions began at 11:32 UTC.
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.
twitter.com currently returns Cloudflare's "Internal server error" page.
November 18, 2025 at 1:13 PM
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.
twitter.com currently returns Cloudflare's "Internal server error" page.
🚀 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.
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...
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 14, 2025 at 6:05 PM
🚀 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.
Reposted by Doug Madory
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...
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
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...
98.97.73.224/27,XX,XX-XY,Mars
Learn more in @eldomador.bsky.social's latest post pulse.internetsociety.org/blog/blast-o...
Reposted by Doug Madory
‼️ 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
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
‼️ 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
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
It's corn maze season 🎃
November 2, 2025 at 9:16 PM
It's corn maze season 🎃
The internet restoration in Tanzania was short-lived. After 1.5 hours, internet service went down again.
October 30, 2025 at 5:41 PM
The internet restoration in Tanzania was short-lived. After 1.5 hours, internet service went down again.
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...
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
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...
Using the newly published Preliminary Post Incident Review, let's discuss what happened and why. 🧵
azure.status.microsoft/en-us/status...
Reposted by Doug Madory
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
Internet traffic began returning to normal in Tanzania beginning at 11:39 UTC today following an internet shutdown lasting nearly 26 hours.
Reposted by Doug Madory
Our thoughts are with the affected provider during this difficult time; we can’t imagine what that must be like.
- AWS, probably
- AWS, probably
October 29, 2025 at 9:00 PM
Our thoughts are with the affected provider during this difficult time; we can’t imagine what that must be like.
- AWS, probably
- AWS, probably
Reposted by Doug Madory
Latest update on the Azure outage:
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
October 29, 2025 at 8:11 PM
Latest update on the Azure outage:
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
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
"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
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
"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
Latest update on the Azure outage:
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
October 29, 2025 at 8:11 PM
Latest update on the Azure outage:
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
We initiated the deployment of our 'last known good' configuration...
azure.status.microsoft/en-us/status
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...
www.theguardian.com/world/2025/o...
October 29, 2025 at 3:55 PM
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...
www.theguardian.com/world/2025/o...
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.
Cuba also experienced a decline in traffic volume, according to @kentik.bsky.social aggregate NetFlow data.
October 29, 2025 at 3:43 PM
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.
Cuba also experienced a decline in traffic volume, according to @kentik.bsky.social aggregate NetFlow data.
Reposted by Doug Madory
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...
Near realtime Internet connectivity data in Jamaica:
ioda.inetintel.cc.gatech.edu/country/JM?f...
October 28, 2025 at 5:25 PM
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...
Near realtime Internet connectivity data in Jamaica:
ioda.inetintel.cc.gatech.edu/country/JM?f...
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...
pulse.internetsociety.org/blog/blast-o...
Blast-Off: 3.5 Years of Starlink Growth
pulse.internetsociety.org
October 28, 2025 at 12:47 PM
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...
pulse.internetsociety.org/blog/blast-o...
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...
ioda.inetintel.cc.gatech.edu/country/CM?f...
October 24, 2025 at 12:54 PM
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...
ioda.inetintel.cc.gatech.edu/country/CM?f...
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.
Traffic volumes to major operators in Cameroon exhibiting odd pulsing behavior.
October 23, 2025 at 2:55 PM
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.
Traffic volumes to major operators in Cameroon exhibiting odd pulsing behavior.
Reposted by Doug Madory
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...
ioda.inetintel.cc.gatech.edu/country/CM?f...
October 23, 2025 at 11:55 AM
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...
ioda.inetintel.cc.gatech.edu/country/CM?f...
🚨UPDATE on PEACE submarine cable break:
Fault location：approximately 1380km from Egypt ZFR CLS (cc: @azizf45)
www.submarinecablemap.com/submarine-ca...
Fault location：approximately 1380km from Egypt ZFR CLS (cc: @azizf45)
www.submarinecablemap.com/submarine-ca...
October 22, 2025 at 3:15 PM
🚨UPDATE on PEACE submarine cable break:
Fault location：approximately 1380km from Egypt ZFR CLS (cc: @azizf45)
www.submarinecablemap.com/submarine-ca...
Fault location：approximately 1380km from Egypt ZFR CLS (cc: @azizf45)
www.submarinecablemap.com/submarine-ca...
PEACE submarine cable suffered an outage yesterday (Oct-20) at 12:30 UTC when "PFE voltage suddenly dropped in Zafarana, Egypt."
When the PEACE cable was lost, Pakistani incumbent @PTCLOfficial lost transit from Lumen (AS3356).
www.submarinecablemap.com/submarine-ca...
When the PEACE cable was lost, Pakistani incumbent @PTCLOfficial lost transit from Lumen (AS3356).
www.submarinecablemap.com/submarine-ca...
October 21, 2025 at 4:25 PM
PEACE submarine cable suffered an outage yesterday (Oct-20) at 12:30 UTC when "PFE voltage suddenly dropped in Zafarana, Egypt."
When the PEACE cable was lost, Pakistani incumbent @PTCLOfficial lost transit from Lumen (AS3356).
www.submarinecablemap.com/submarine-ca...
When the PEACE cable was lost, Pakistani incumbent @PTCLOfficial lost transit from Lumen (AS3356).
www.submarinecablemap.com/submarine-ca...
Traffic stats to DynamoDB yesterday show at least two other AWS disruptions following the big one early yesterday.
Last update on the AWS Health Dashboard provides more details.
health.aws.amazon.com/health/status
Last update on the AWS Health Dashboard provides more details.
health.aws.amazon.com/health/status
October 21, 2025 at 2:19 PM
Traffic stats to DynamoDB yesterday show at least two other AWS disruptions following the big one early yesterday.
Last update on the AWS Health Dashboard provides more details.
health.aws.amazon.com/health/status
Last update on the AWS Health Dashboard provides more details.
health.aws.amazon.com/health/status
Reposted by Doug Madory
