ChatGPT Down after a Cloudflare outage: What caused the global disruption

On 18 November 2025, millions of users found themselves unable to access ChatGPT. The cause? A widespread outage at Cloudflare, the backbone behind numerous websites and services. This disruption exposes how fragile digital infrastructure remains, even as we trust it more than ever. The event forces questions about dependence on single providers, the resilience of cloud networks, and how enterprises and individuals should prepare for unexpected service failures.