A major Cloudflare outage on Tuesday morning, November 18, 2025, knocked out Spotify, X (Twitter), ChatGPT, and thousands of other websites and apps for nearly three hours, disrupting millions of users worldwide.
The disruption began at approximately 5:48 a.m. EST (10:48 GMT) and was fully resolved by around 8:30 a.m. EST, Cloudflare reported. Users encountered HTTP 500 errors, blank pages, and failed logins across services that rely on Cloudflare’s content delivery network and security tools, which handle about 20% of global web traffic.
High-profile casualties included:
- X (Twitter): nearly 11,000 Downdetector reports; timelines failed to load
- Spotify: streaming and login issues affecting millions
- ChatGPT and Claude: AI services became unreachable
- Canva, Uber, Amazon services, League of Legends, and major UK retailers
Cloudflare CEO Matthew Prince stated the outage stemmed from a “latent bug” in an internal system triggered during a traffic spike, not a cyberattack. Engineers rerouted traffic and fixed the issue within hours.
By early afternoon, Cloudflare declared the incident resolved, though some residual slowdowns lingered on Spotify and a few other platforms. The event once again exposed the risks of centralized internet infrastructure, with users on X (once it returned) joking about the irony of services collapsing while blockchains stayed online.
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