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Outage in Cloudflare

Increased HTTP 526 Errors

Resolved Minor
June 10, 2026 - Started about 10 hours ago - Lasted about 2 hours
Official incident page

Incident Report

Summary AI Generated

Cloudflare experienced an issue where customers with valid origin certificates were receiving HTTP 526 errors, affecting Cloudflare Sites and Services and the Network. The problem impacted some customers' ability to properly serve content through Cloudflare's platform for 2.1 hours. Cloudflare identified the root cause, implemented a fix, and monitored the results to ensure resolution.

Cloudflare is aware of and investigating an issue where some customers with valid origin certificates are receiving 526 errors.

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Latest Updates ( sorted recent to last )
MONITORING about 9 hours ago - at 06/10/2026 10:50AM

A fix has been implemented and we are monitoring the results.

IDENTIFIED about 9 hours ago - at 06/10/2026 10:20AM

The issue has been identified and a fix is being implemented.

INVESTIGATING about 10 hours ago - at 06/10/2026 09:36AM

Cloudflare is aware of and investigating an issue where
some customers with valid origin certificates are receiving 526 errors.

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