On November 18, 2025, Cloudflare experienced a significant outage caused by an unexpected surge in traffic, which disrupted access to key services such as X (formerly Twitter), ChatGPT, and Spotify. The issue started around 12:00 UTC and was primarily linked to Cloudflare's CDN and DDoS protection services. While the company worked swiftly to resolve the issue, many users faced difficulties in accessing these services for several hours. Cloudflare confirmed the incident, but the exact source of the traffic spike remains undetermined.