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Cloudflare Outage History

Every past Cloudflare outage tracked by IsDown, with detection times, duration, and resolution details.

There were 3029 Cloudflare outages since March 2020. The 697 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor April 1, 2026

April 2026: Increased 1003 / 403 errors in Workers

Detected Apr 1, 2026 8:47 PM EDT · Resolved Apr 2, 2026 4:37 AM EDT · Duration about 8 hours

Cloudflare experienced an issue affecting Workers invocations where customers encountered 1003/403 errors when making fetch() calls inside Workers. The problem impacted Cloudflare Sites and Services along with the Workers platform for 7.8 hours. A fix was identified and implemented, with most customers seeing resolution and a continued rollout for remaining affected users.

Minor April 1, 2026

April 2026: Network Performance Issues in Phoenix, AZ

Detected Apr 1, 2026 4:03 PM EDT · Resolved Apr 1, 2026 4:25 PM EDT · Duration 22 minutes

Cloudflare experienced network performance issues in Phoenix, AZ that caused errors and degraded performance for customers whose traffic was routed through that location. The incident affected Cloudflare Sites and Services in the Phoenix area for 22 minutes before being resolved.

Minor March 31, 2026

March 2026: Elevated Error Rate for R2 APAC Buckets

Detected Mar 31, 2026 4:34 PM EDT · Resolved Mar 31, 2026 6:16 PM EDT · Duration about 2 hours

Cloudflare experienced elevated error rates for R2 storage buckets in the APAC region, affecting customer access to their stored data and associated sites and services. The incident lasted 1.7 hours while Cloudflare investigated and resolved the connectivity issues. The problem impacted customers attempting to access their R2 buckets during the outage period.

Minor March 30, 2026

March 2026: Workers Assets increased upload failure

Detected Mar 30, 2026 7:51 AM EDT · Resolved Mar 30, 2026 1:04 PM EDT · Duration about 5 hours

Cloudflare experienced increased upload failures for Workers Assets over 5.2 hours, preventing customers from successfully uploading new assets. The serving of existing Workers Assets traffic remained unaffected throughout the incident. The issue was identified and resolved with a implemented fix, followed by monitoring to ensure stability.

Minor March 27, 2026

March 2026: Intermittent 500s on RealtimeKit API

Detected Mar 27, 2026 7:57 PM EDT · Resolved Mar 28, 2026 1:37 AM EDT · Duration about 6 hours

Cloudflare experienced intermittent 500 errors affecting their Realtime APIs for 5.7 hours, while RealtimeKit meetings continued to function normally. The incident did not impact CDN file serving or edge security features, and Cloudflare investigated the API issues throughout the duration.

Minor March 27, 2026

March 2026: Cloudflare Pages - Custom Domain Management Degraded

Detected Mar 27, 2026 6:36 PM EDT · Resolved Mar 27, 2026 7:33 PM EDT · Duration about 1 hour

Cloudflare Pages experienced a 56-minute incident where customers encountered failures and errors when attempting to add or manage custom domains through the Pages API or dashboard. The issue was caused by problems with the custom domain management API and high latency/intermittent errors in the SSL for SaaS Custom Hostnames API. Deployed Workers and Pages projects continued serving traffic normally throughout the incident, with only custom domain management functionality being affected.

Minor March 26, 2026

March 2026: Increase in 502 errors

Detected Mar 26, 2026 7:30 PM EDT · Resolved Mar 26, 2026 7:54 PM EDT · Duration 24 minutes

Cloudflare experienced an issue that caused increased 502 errors for a subset of customers, affecting their Sites and Services and CDN/Cache components. The problem was identified and a fix was implemented within 24 minutes, with monitoring ongoing to ensure resolution.

Minor March 26, 2026

March 2026: Incorrect IP source information in spectrum HTTP/HTTPS apps

Detected Mar 26, 2026 1:08 PM EDT · Resolved Mar 26, 2026 3:12 PM EDT · Duration about 2 hours

Cloudflare experienced an issue where Spectrum HTTP/HTTPS applications were reporting incorrect client source IP addresses and geolocation information. The problem affected Cloudflare Sites and Services and Spectrum components for 2.1 hours. Cloudflare identified the root cause, implemented a fix, and monitored the resolution.

Minor March 25, 2026

March 2026: Cloudflare Workers AI Issues

Detected Mar 25, 2026 11:03 PM EDT · Resolved Mar 26, 2026 12:26 AM EDT · Duration about 1 hour

Cloudflare experienced issues with their Workers AI service where customers encountered errors when making inference requests to the @cf/openai/gpt-oss-120b model. The incident affected Cloudflare Sites and Services along with Workers AI functionality. A fix was implemented and deployed within 1.4 hours, with Cloudflare monitoring the results to ensure resolution.

Minor March 25, 2026

March 2026: Access for Infrastructure RDP intermittent connectivity issues

Detected Mar 25, 2026 6:02 PM EDT · Resolved Mar 25, 2026 9:25 PM EDT · Duration about 3 hours

Cloudflare experienced intermittent connectivity issues with Access Browser-based RDP functionality, affecting customers' ability to reliably connect to remote desktop services through their Access platform. The incident impacted Cloudflare Sites and Services and Access components for approximately 3.4 hours. The service disruption caused transient connection problems for users attempting to access RDP sessions through Cloudflare's browser-based interface.