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On December 5, 2025, Cloudflare experienced a significant outage lasting about 25 minutes due to a configuration change related to their Web Application Firewall. The issue arose from a bug triggered when turning off a testing tool, resulting in HTTP 500 errors for around 28% of customer traffic. Cloudflare is implementing measures to prevent similar incidents in the future.
A significant incident occurred on July 14, 2025, involving Cloudflare's 1.1.1.1 DNS service, leading to widespread internet disruptions. The article details the nature of the incident, its impact on users, and the steps taken by Cloudflare to resolve the issues.