Social media platform X and a cluster of other high-traffic services suffered a sharp, synchronised outage on 22 June, after a fault in Cloudflare’s backbone network rippled across the internet. User-submitted reports on Downdetector peaked at nearly 36,000 for X between 9:45 and 10:00 a.m. Eastern Time, while Reddit, Zoom, Microsoft Teams, Discord, Canva, Robinhood and the game Fortnite all registered simultaneous spikes in complaints. The disruption was short-lived: Cloudflare identified the issue and deployed a fix by roughly 10:30 a.m. ET, and most services returned to normal within the hour.

Cloudflare, whose network carries an estimated 20 percent of global web traffic, reported “increased error rates and latency in multiple services” and pointed to a fibre cut affecting customers connecting through North America or accessing services in Europe. The company’s status page confirmed engineers were mitigating the problem shortly after 9:30 a.m. ET. Because X, like many large platforms, routes its traffic through Cloudflare’s content-delivery and security infrastructure, the fibre cut effectively severed the path between users and the platform’s servers, producing blank feeds, failed logins and error messages across both mobile apps and desktop browsers.

The outage was felt unevenly but widely. In the United States, Downdetector logged more than 35,000 X reports; Canada and the United Kingdom each recorded over 1,300. Users in India flagged more than 2,000 incidents, while complaints surfaced in Mexico, Brazil, the UAE and Germany. In Mexico City, Monterrey and Guadalajara, the failure was concentrated on the mobile application, with 51–53 percent of reports citing app problems. UAE residents described receiving push notifications that led to blank pages, a pattern repeated across regions. The incident came days after a separate, smaller X-specific instability on 16 June, though Monday’s event was clearly tied to the Cloudflare backbone rather than a platform-only fault.

Cloudflare has experienced several high-impact disruptions over the past year, including a major server failure in November 2025 that took down X, ChatGPT, Spotify and other services for five hours, and a shorter recurrence in December. Monday’s fibre cut was resolved far more quickly, but the recurrence of a single point of failure affecting such a broad slice of the consumer internet will focus attention on the resilience of critical infrastructure providers. Cloudflare has not yet published a root-cause analysis; that post-incident report is the next factual milestone to watch, as it will clarify whether the fibre cut was a physical event or a configuration error and what redundancy measures are being reinforced.