Cloudflare service outage June 12, 2025
2025-06-12
Multiple Cloudflare services, including Workers KV, Access, WARP and the Cloudflare dashboard, experienced an outage for up to 2 hours and 28 minutes on June 12, 2025....
Continue reading »
How the April 28, 2025, power outage in Portugal and Spain impacted Internet traffic and connectivity
2025-04-28
A massive power outage struck significant portions of Portugal and Spain at 10:34 UTC on April 28, disrupting everyday activities and services....
Cloudflare incident on March 21, 2025
2025-03-25
On March 21, 2025, multiple Cloudflare services, including R2 object storage experienced an elevated rate of error responses. Here’s what caused the incident, the impact, and how we are making sure it...
Cloudflare incident on February 6, 2025
2025-02-07
On Thursday, February 6, 2025, we experienced an outage with our object storage service (R2) and products that rely on it. Here's what happened and what we're doing to fix this going forward....
Cloudflare 2024 Year in Review
2024-12-09
The 2024 Cloudflare Radar Year in Review is our fifth annual review of Internet trends and patterns at both a global and country/region level....
MORE POSTS
November 20, 2024 9:30 PM
Resilient Internet connectivity in Europe mitigates impact from multiple cable cuts
Two recent cable cuts that occurred in the Baltic Sea resulted in little-to-no observable impact to the affected countries, in large part because of the significant redundancy and resilience of Internet infrastructure in Europe. ...
- By
October 30, 2024 12:00 AM
Cloudflare’s perspective of the October 30, 2024, OVHcloud outage
On October 30, 2024, cloud hosting provider OVHcloud (AS16276) suffered a brief but significant outage. Within this post, we review Cloudflare’s perspective on this outage....
- By
October 29, 2024 1:05 PM
Forced offline: the Q3 2024 Internet disruption summary
The third quarter of 2024 was particularly active, with quite a few significant Internet disruptions. Underlying causes included government-directed shutdowns, power outages, hurricane damage, terrestrial and submarine cable cuts, military action, and more....
- By
October 01, 2024 12:32 AM
Impact of Verizon’s September 30 outage on Internet traffic
On Monday, September 30, customers on Verizon’s mobile network in multiple cities across the United States reported experiencing a loss of connectivity. HTTP request traffic data from Verizon’s mobile ASN (AS6167) showed nominal declines across impacted cities. ...
- By
September 20, 2024 2:00 PM
Cloudflare incident on September 17, 2024
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
August 01, 2024 3:21 PM
A recent spate of Internet disruptions
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
July 16, 2024 1:00 PM
Q2 2024 Internet disruption summary
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
July 04, 2024 1:00 PM
Cloudflare 1.1.1.1 incident on June 27, 2024
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
June 26, 2024 1:00 PM
Cloudflare incident on June 20, 2024
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
June 21, 2024 1:00 PM
Exam-ining recent Internet shutdowns in Syria, Iraq, and Algeria
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
May 13, 2024 10:37 PM
East African Internet connectivity again impacted by submarine cable cuts
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
April 29, 2024 1:00 PM
Q1 2024 Internet disruption summary
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
April 08, 2024 1:00 PM
Major data center power failure (again): Cloudflare Code Orange tested
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
March 14, 2024 6:03 PM
Undersea cable failures cause Internet disruptions for multiple African countries
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
January 22, 2024 2:00 PM
Q4 2023 Internet disruption summary
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