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/
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:
Let's Encrypt impacted by Cloudflare outage.
November 18, 2025 at 2:25 PM
Let's Encrypt impacted by Cloudflare outage.
Twitter/X traffic by source CDN:
November 18, 2025 at 2:02 PM
Twitter/X traffic by source CDN:
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.
Be sure to check out the interactive visualization at the end!
November 14, 2025 at 8:32 PM
Be sure to check out the interactive visualization at the end!
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...
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.
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.
Yangon I suspect. I'm going to cover this in Part 2.
Starlink has IP geo entries for countries they don't list as operational on their availability map, but for some of these (like Venezuela and Myanmar) the service is enjoying widespread use despite some potential legal restrictions.
Starlink has IP geo entries for countries they don't list as operational on their availability map, but for some of these (like Venezuela and Myanmar) the service is enjoying widespread use despite some potential legal restrictions.
October 28, 2025 at 6:14 PM
Yangon I suspect. I'm going to cover this in Part 2.
Starlink has IP geo entries for countries they don't list as operational on their availability map, but for some of these (like Venezuela and Myanmar) the service is enjoying widespread use despite some potential legal restrictions.
Starlink has IP geo entries for countries they don't list as operational on their availability map, but for some of these (like Venezuela and Myanmar) the service is enjoying widespread use despite some potential legal restrictions.
Traffic isn't pulsing anymore in Cameroon
October 24, 2025 at 1:22 PM
Traffic isn't pulsing anymore in Cameroon
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...
@radar.cloudflare.com also sees the pulsing traffic to Cameroon:
radar.cloudflare.com/cm?dateRange...
radar.cloudflare.com/cm?dateRange...
October 23, 2025 at 2:59 PM
@radar.cloudflare.com also sees the pulsing traffic to Cameroon:
radar.cloudflare.com/cm?dateRange...
radar.cloudflare.com/cm?dateRange...
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.
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
Amazon has blamed today's massive outage on the "DNS resolution of the DynamoDB API endpoint in US-EAST-1."
@kentik.bsky.social observed a complete drop-off in traffic to this particular AWS service beginning at 06:55 UTC. Thousands of services around the world were impacted.
@kentik.bsky.social observed a complete drop-off in traffic to this particular AWS service beginning at 06:55 UTC. Thousands of services around the world were impacted.
October 20, 2025 at 2:51 PM
Amazon has blamed today's massive outage on the "DNS resolution of the DynamoDB API endpoint in US-EAST-1."
@kentik.bsky.social observed a complete drop-off in traffic to this particular AWS service beginning at 06:55 UTC. Thousands of services around the world were impacted.
@kentik.bsky.social observed a complete drop-off in traffic to this particular AWS service beginning at 06:55 UTC. Thousands of services around the world were impacted.
CS Niwa, assigned to fix the Red Sea submarine cable cuts, arrived at Jeddah earlier today:
www.marinetraffic.com/en/ais/home/...
www.linkedin.com/feed/update/...
www.marinetraffic.com/en/ais/home/...
www.linkedin.com/feed/update/...
October 13, 2025 at 9:06 PM
CS Niwa, assigned to fix the Red Sea submarine cable cuts, arrived at Jeddah earlier today:
www.marinetraffic.com/en/ais/home/...
www.linkedin.com/feed/update/...
www.marinetraffic.com/en/ais/home/...
www.linkedin.com/feed/update/...
Vodafone UK traffic is beginning to recover at 16:04 UTC (5:04pm local). Outage lasted about two hours.
October 13, 2025 at 4:18 PM
Vodafone UK traffic is beginning to recover at 16:04 UTC (5:04pm local). Outage lasted about two hours.