November 01, 2021 10:41 AM
It's not every day that there is no Internet access in an entire country. In the case of Sudan, it has been five days without Internet after political turmoil that started last Monday, October 25, 2021...
October 25, 2021 7:00 PM
Today, October 25, following political turmoil, Sudan woke up without Internet access....
October 04, 2021 9:08 PM
Today at 1651 UTC, we opened an internal incident entitled "Facebook DNS lookup returning SERVFAIL" because we were worried that something was wrong with our DNS resolver 1.1.1.1. But as we were about to post on our public status page we realized something else more serious was going on....
November 27, 2020 12:00 PM
When we review design documents at Cloudflare, we are always on the lookout for Single Points of Failure (SPOFs). In this post, we present a timeline of a real-world incident, and how an interesting failure mode known as a Byzantine fault played a role in a cascading series of events....
July 18, 2020 1:22 AM
Today a configuration error in our backbone network caused an outage for Internet properties and Cloudflare services that lasted 27 minutes. We saw traffic drop by about 50% across our network....
April 16, 2020 12:28 AM
Starting at 1531 UTC and lasting until 1952 UTC, the Cloudflare Dashboard and API were unavailable because of the disconnection of multiple, redundant fibre connections from one of our two core data centers....
July 12, 2019 3:45 PM
Almost nine years ago, Cloudflare was a tiny company and I was a customer not an employee. Cloudflare had launched a month earlier and one day alerting told me that my little site, jgc.org, didn’t seem to have working DNS any more. ...
July 02, 2019 3:50 PM
Starting at 1342 UTC today we experienced a global outage across our network that resulted in visitors to Cloudflare-proxied domains being shown 502 errors (“Bad Gateway”). The cause of this outage was deployment of a single misconfigured rule within the Cloudflare Web Applicatio...
November 15, 2018 5:22 PM
Last Monday evening — 12 November 2018 — Google and a number of other services experienced a 74 minute outage. Incidents like this only serve to demonstrate just how much frailty is involved in how packets get from one point on the Internet to another....
September 07, 2017 8:58 PM
Over the last two days, Cloudflare observed two events that had effects on global Internet traffic levels. Cloudflare handles approximately 10% of all Internet requests, so we have significant visibility into traffic from countries and networks across the world....
August 16, 2017 12:15 AM
At approximately 4:50pm local time (8:50am UTC) August 15, a major unexpected power outage hit the island of Taiwan with a significant amount of its power generation facilities going down....
November 30, 2016 1:00 AM
Sometime before midnight Monday (UK local time) a ship dropped its anchor and broke, not one, not two, but three undersea cables serving the island of Jersey in the English Channel. ...
October 27, 2016 12:10 PM
Last Friday the popular DNS service Dyn suffered three waves of DDoS attacks that affected users first on the East Coast of the US, and later users worldwide. ...
October 21, 2016 6:22 PM
Today there is an ongoing, large scale Denial-of-Service attack directed against Dyn DNS. While Cloudflare services are operating normally, if you are using both Cloudflare and Dyn services, your website may be affected....
May 08, 2013 11:10 AM
Yesterday, Syria's Internet connectivity was cut off from the rest of the world. At 14:12 UTC, approximately 19 hours and 30 minutes after it had been shut down, connectivity was returned....
May 07, 2013 2:13 PM
Today at 18:48 UTC, Syria dropped off the Internet. Based on the data we collect from our network, as well as reports from other organizations monitoring network routes, it appears that someone systematically withdrew the BGP. ...
March 03, 2013 1:47 PM
This morning at 09:47 UTC CloudFlare effectively dropped off the Internet. The outage affected all of CloudFlare's services including DNS and any services that rely on our web proxy....
December 01, 2012 3:35 PM
Syria has reestablished partial connectivity to the Internet. The following map of BGP connectivity shows Syria's 29386 network connected to multiple networks outside Syria....
