https://netguide.jp/en/tags/%E3%82%A4%E3%83%B3%E3%82%BF%E3%83%BC%E3%83%8D%E3%83%83%E3%83%88%E9%9A%9C%E5%AE%B3/Recent content in インターネット障害 on KaisekukunHugo -- gohugo.ioenKaisekukunWed, 19 Nov 2025 06:00:00 +0000https://netguide.jp/en/web/cloudflare-incident-2025-11-18/Wed, 19 Nov 2025 06:00:00 +0000https://netguide.jp/en/web/cloudflare-incident-2025-11-18/<img src="https://netguide.jp/img/thumbnail/cloudflare-incident-2025-11-18-en.png" alt="Featured image of post Nov 18, 2025: Massive Cloudflare Outage Took Down X, ChatGPT, Discord — What Happened?" /><p>&ldquo;Last night the internet suddenly stopped working&hellip;&rdquo; &ldquo;X (Twitter), ChatGPT, even Discord — none of them would load!&rdquo;</p> <p>On the night of November 18, 2025, many people experienced exactly this. It wasn&rsquo;t your phone or Wi-Fi — it was a <strong>global-scale Cloudflare outage</strong> that disrupted countless services.</p> <p>Here is the timeline, the surprising cause, and what we can learn from it.</p> <p><picture><source type="image/avif" srcset="https://netguide.jp/img/post/cloudflare-logo.avif" sizes="(max-width: 767px) calc(100vw - 30px), (max-width: 1023px) 700px, (max-width: 1279px) 950px, 1232px"><img loading="lazy" src="https://netguide.jp/img/post/cloudflare-logo.png"> </picture> </p>