Outage

September 20, 2024 2:00 PM

On September 17, 2024, during planned routine maintenance, Cloudflare stopped announcing 15 IPv4 prefixes, affecting some Business plan websites for approximately one hour. During this time, IPv4 traffic for these customers would not have reached Cloudflare and users attempting t...

By 
• Joe Abley

August 01, 2024 3:21 PM

Cloudflare Radar is constantly monitoring the Internet for widespread disruptions. Here we examine several recent noteworthy disruptions detected in the first month of Q3, including traffic anomalies observed in Bangladesh, Syria, Pakistan, and Venezuela....

By 
• David Belson

July 16, 2024 1:00 PM

Government directed shutdowns and cable cuts were both significant sources of Internet outages in Q2 2024. This post explores these disruptions, as well as others caused by power outages, maintenance, technical problems, military action, and unknown causes...

By 
• David Belson

July 04, 2024 1:00 PM

On June 27, 2024, a small number of users globally may have noticed that 1.1.1.1 was unreachable or degraded. The root cause was a mix of BGP (Border Gateway Protocol) hijacking and a route leak...

By 
• Bryton Herdes
• , Mingwei Zhang
• , Tanner Ryan

June 26, 2024 1:00 PM

A new DDoS rule resulted in an increase in error responses and latency for Cloudflare customers. Here’s how it went wrong, and what we’ve learned...

By 
• Lloyd Wallis
• , Julien Desgats
• , Manish Arora

June 21, 2024 1:00 PM

Similar to actions taken over the last several years, governments in Syria, Iraq, and Algeria have again disrupted Internet connectivity nationwide in an attempt to prevent cheating on exams. We investigate how these disruptions were implemented, and their impact...

By 
• David Belson

May 13, 2024 10:37 PM

On Sunday, May 12, issues with the EASSy and Seacom submarine cables again disrupted connectivity to East Africa, impacting a number of countries previously affected by a set of cable cuts that occurred nearly three months earlier...

By 
• David Belson

April 29, 2024 1:00 PM

The first quarter of 2024 kicked off with quite a few Internet disruptions. Perhaps most interestingly, RPKI, DNS, and DNSSEC issues were among the technical problems that disrupted connectivity for subscribers across multiple network providers...

By 
• David Belson

April 08, 2024 1:00 PM

Just four months after a complete power outage at a critical data center we were hit with the exact same scenario. Here’s how we did this time, and what’s next...

By 
• Matthew Prince
• , John Graham-Cumming
• , Jeremy Hartman

March 14, 2024 6:03 PM

Internet connectivity in several African countries was disrupted on March 14, 2024, beginning at approximately 05:00 UTC. Based on published reports and social media posts from impacted network providers, the disruption is believed to be due to multiple undersea cable failures in...

By 
• João Tomé
• , David Belson

January 22, 2024 2:00 PM

In this post, we review selected Internet disruptions observed by Cloudflare during the fourth quarter of 2023, supported by traffic graphs from Cloudflare Radar and other internal Cloudflare tools, and grouped by associated cause or common geography...

By 
• David Belson

December 12, 2023 1:00 PM

The 2023 Cloudflare Radar Year in Review is our fourth annual review of Internet trends and patterns observed throughout the year at both a global and country/region level across a variety of traffic, connectivity, and speed metrics, based on data from Cloudflare’s network...

By 
• David Belson

November 04, 2023 6:18 AM

Beginning on Thursday, November 2, 2023, at 11:43 UTC Cloudflare's control plane and analytics services experienced an outage. Here are the details...

By 
• Matthew Prince

October 25, 2023 1:05 PM

In this post, we review selected Internet disruptions observed by Cloudflare during the third quarter of 2023, supported by traffic graphs from Cloudflare Radar and other internal Cloudflare tools, and grouped by associated cause or common geography...

By 
• David Belson

October 09, 2023 8:05 PM

On Saturday, October 7, 2023, attacks from the Palestinian group Hamas launched from the Gaza Strip against the south of Israel started a new conflict in the region. Cloudflare's data shows that Internet traffic was impacted in different ways...

By 
• João Tomé