According to Kentik aggregate NetFlow, the outage caused a 52% drop in traffic volume to Cloudflare which began to return at 7:01 UTC when the outage was resolved. Many popular websites were unavailable in parts of the world as well as the messaging platform Discord.
The outage appeared to affect different geographies to different extents. For example, traffic to Cloudflare’s PoPs in Japan appeared to drop to almost zero. Cloudflare’s status page on the incident states, “Connectivity in Cloudflare’s network has been disrupted in broad regions.”
Doug Madory is the director of internet analysis for Kentik where he works on internet infrastructure analysis. The Washington Post dubbed him “The Man who can see the Internet” for his reputation in identifying significant developments in the global layout of the internet. Doug is regularly quoted by major news outlets about developments ranging from national blackouts to BGP hijacks to the activation of submarine cables. Prior to Kentik, he was the lead analyst for Oracle’s internet intelligence team (formerly Dyn Research and Renesys).
How do we get this data? Kentik uses thousands of service provider networks and cloud agents, located around the world, to collect information about network events, outages, and disruptions.
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