Overview
- Cloudflare reported investigating intermittent network performance on December 19 and cautioned customers they may see unexpected errors.
- User reports surged on Downdetector, with U.S. data showing 74% connection-to-server issues, 24% DNS problems and 2% control‑panel errors.
- Impacts were reported across major platforms including YouTube, Google, WhatsApp, ChatGPT, Zoom, LinkedIn, Fortnite, League of Legends and Mercado Libre.
- Despite a mitigation deployed by Cloudflare, complaints continued in some regions as services experienced intermittent loading or blank pages.
- The episode extends a series of Cloudflare incidents in 2025, renewing pressure for detailed postmortems and stronger change‑management practices.