Partial Cloudflare outage on October 25, 2022
October 26, 2022 3:02 AM
Today, a change to our Tiered Cache system caused some requests to fail for users with status code 530...
Internet disruptions overview for Q3 2022
October 18, 2022 5:36 PM
In this post, we review selected Internet disruptions observed by Cloudflare during the second quarter of 2022, supported by traffic graphs from Cloudflare Radar and other internal Cloudflare tools, and grouped by associated cause or common geography...
The status page the Internet needs: Cloudflare Radar Outage Center
September 30, 2022 1:00 PM
The new Cloudflare Radar Outage Center (CROC), launched as part of Radar 2.0, is intended to be an archive of information about Internet outages observed by Cloudflare...
Cloudflare’s view of the Rogers Communications outage in Canada
July 08, 2022 5:28 PM
An outage at one of the largest ISPs in Canada, Rogers Communications, started earlier today, July 8, 2022, and is ongoing (eight hours and counting), and is impacting businesses and consumers....
Internet disruptions overview for Q2 2022
July 05, 2022 1:26 PM
In this post, we review selected Internet disruptions observed by Cloudflare during the second quarter of 2022, supported by traffic graphs from Cloudflare Radar and other internal Cloudflare tools....
MORE POSTS
June 14, 2022 12:55 PM
Exam time means Internet disruptions in Syria, Sudan and Algeria
As they have done over the past several years, Syria and Sudan are implementing multi-hour nationwide Internet shutdowns. Algeria has also taken a similar approach in the past, but this year appears to be implementing more targeted website/app blocking...
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June 10, 2022 10:01 AM
AAE-1 & SMW5 cable cuts impact millions of users across multiple countries
On June 7, the Africa-Asia-Europe-1 (AAE-1) and SEA-ME-WE-5 (SMW-5) submarine cables suffered cable cuts, impactingInternet connectivity for millions of Internet users across multiple countries in the Middle East, Africa, and Asia...
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April 05, 2022 12:57 PM
PIPEFAIL: How a missing shell option slowed Cloudflare down
This post tells the story of how a missing shell option called “pipefail” slowed Cloudflare down....
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March 09, 2022 10:11 AM
DNSSEC issues take Fiji domains offline
DNSSEC issues with the .fj ccTLD caused problems reaching websites on the island nation...
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February 22, 2022 1:04 PM
Internet is back in Tonga after 38 days of outage
Tonga, the South Pacific archipelago nation (with 169 islands), was reconnected to the Internet this early morning (UTC) and is back online after successful repairs to the undersea cable that was damaged on Saturday, January 15, 2022, by the January 14, volcanic eruption...
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January 21, 2022 12:20 PM
Internet outage in Yemen amid airstrikes
The early hours of Friday, January 21, 2022, started in Yemen with a country-wide Internet outage...
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January 19, 2022 1:58 PM
Tonga’s likely lengthy Internet outage
The latest Internet outage, in the South Pacific country of Tonga (with 169 islands), is still ongoing. It started with the large eruption of Hunga Tonga–Hunga Haʻapai, an uninhabited volcanic island of the Tongan archipelago on Friday, January 14, 2022...
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November 01, 2021 10:41 AM
Sudan: seven days without Internet access (and counting)
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...
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October 25, 2021 7:00 PM
Sudan woke up without Internet
Today, October 25, following political turmoil, Sudan woke up without Internet access....
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October 08, 2021 3:16 PM
What happened on the Internet during the Facebook outage
Today, we're going to show you how the Facebook and affiliate sites downtime affected us, and what we can see in our data....
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October 04, 2021 9:08 PM
Understanding how Facebook disappeared from the Internet
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 ...
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November 27, 2020 12:00 PM
A Byzantine failure in the real world
At Cloudflare, we are always on the lookout for Single Points of Failure. In this post, we explore the role a failure mode known as a Byzantine fault played in a a real-world incident....
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August 30, 2020 8:55 PM
August 30th 2020: Analysis of CenturyLink/Level(3) outage
Today CenturyLink/Level(3), a major ISP and Internet bandwidth provider, experienced a significant outage that impacted some of Cloudflare’s customers as well as a significant number of other services and providers across the Internet. ...
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July 18, 2020 1:22 AM
Cloudflare outage on July 17, 2020
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....
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