This post is also available in 简体中文, Français, Deutsch, Italiano, 日本語, 한국어, Português, Español (Latinoamérica), Español, Nederlands and 繁體中文. On 18 November 2025 at 11:20 UTC (all times in this blog are UTC), Cloudflare's network began experiencing significant failures to deliver core network traffic. This showed up to Internet users trying to access our customers' sites as an error page indicatin