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/

‼️ Saudi Arabia just blocked Tinder explorer.ooni.org/findings/305... Today, OONI data shows that Tinder started being blocked on Mobily (AS35819) by means of TLS interference. We were alerted of this block through our new Censorship Alert System, an internal prototype we're testing. 🙏🐙 #ooni

OONI data on the blocking of Tinder in Saudi Arabia

An RPKI ROV laggard no more, China's ROA coverage jumped from 4% to 81% since April, a major advance in the country's BGP security. Job Snijders and I break down the numbers behind China's unprecedented ROA rollout, now covering nearly the entire country. www.kentik.com/blog/china-r...

China Rolls out the ROAs

Long a laggard in RPKI adoption, China has dramatically increased its ROA coverage from 4% to 81% since April, signaling a major commitment to securing the internet’s routing system. This post explore...

kentik.com

An RPKI ROV laggard no more, China's ROA coverage jumped from 4% to 81% since April, a major advance in the country's BGP security. Job Snijders and I break down the numbers behind China's unprecedented ROA rollout, now covering nearly the entire country. www.kentik.com/blog/china-r...

China Rolls out the ROAs

Long a laggard in RPKI adoption, China has dramatically increased its ROA coverage from 4% to 81% since April, signaling a major commitment to securing the internet’s routing system. This post explore...

kentik.com

Last week, Pakistan briefly experienced degraded internet service due to a reported subsea cable fault (SMW-5). At 13:02 UTC on Jul-02, Pakistani international gateway Transworld lost transit from Singtel and China Mobile, before returning to normal at 19:48 UTC. www.dawn.com/news/2012653...

PTA says submarine cable fault resolved, internet services back to normal

Internet service provider Nayatel says that “international traffic has returned to normal”.

dawn.com

From Heuristics to Anonymous Credentials: Assessing OONI's Approach to Bad Measurements ooni.org/post/2026-fa... In our latest blog post, we share: • New heuristics & strategies for mitigating faulty measurements • An evaluation of the effectiveness of our new Anonymous Credential System 🐙✨ #ooni

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Abrupt drop in internet traffic to Venezuela at 22:04 UTC (6:04pm VET) after two devastating earthquakes struck the country yesterday evening. Our thoughts are with everyone affected. 🙏

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Iran played Belgium in the #WorldCup2026FIFA on June 21st at 19:00 UTC (10:30pm local). Despite having only a partially restored internet, domestic traffic spiked and international traffic dipped as Iranians tuned in to see their country participate in the global event.

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When Local Blocks Go Global: The India-Telegram BGP Incident In this post, I dig into the leaked hijack intended to block Telegram in India — the latest intentional, but also accidental BGP mishap, in which a domestic block escapes, disrupting a service worldwide. www.kentik.com/blog/when-lo...

When Local Blocks Go Global: The India-Telegram BGP Incident

Yesterday’s leak of a BGP hijack intended to block Telegram in India is the latest routing mishap best described as intentional, but also accidental — a pattern dating back to Pakistan Telecom’s infam...

kentik.com

As part of an effort to block Telegram, AS18101 of India hijacked BGP routes of the messaging service — with limited propagation due to route filtering. The red sliver in the dotted box represents the propagation of AS18101's hijack — not nothing but RPKI ROV helped to limit the impact.

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The subsea cable linking Syria to Egypt was severed yesterday (Jun-14) at 18:50 UTC — part of what is being called a "systematic sabotage campaign" against the nation's infrastructure. Overall traffic dropped, routes shifted from Telecom Egypt (AS8452) at the time of the cut.

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There has been a subsea data cable system „Aletar“ fault close to Syrias coast off Tartous on Sunday. Sabotage has been suspected by Syrian authorities but not proven. Rerouting works, but recognizable traffic drops. The cable is from 1997, one of the oldest lit subsea cables.

Doug Madory@eldomador.bsky.social · 2mo ago

The subsea cable linking Syria to Egypt was severed yesterday (Jun-14) at 18:50 UTC — part of what is being called a "systematic sabotage campaign" against the nation's infrastructure. Overall traffic dropped, routes shifted from Telecom Egypt (AS8452) at the time of the cut.

The subsea cable linking Syria to Egypt was severed yesterday (Jun-14) at 18:50 UTC — part of what is being called a "systematic sabotage campaign" against the nation's infrastructure. Overall traffic dropped, routes shifted from Telecom Egypt (AS8452) at the time of the cut.

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At 13:34 UTC today, Facebook suffered a widespread, partial outage affecting its services. Instagram and WhatsApp appear to have been unaffected. Service began recovering at 14:16 UTC, over 40min later. Facebook traffic has yet to recover to the level seen prior to the outage.

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