Is Cloudflare Down? How to Check Status and Troubleshoot (2026)

Is Cloudflare Down? Cloudflare sits in front of ~20% of all websites. When it goes down, millions of sites become unreachable. Quick Check API Status Check — real-time monitoring cloudflarestatus.com — official status Try a non-Cloudflare site — rule out your internet Cloudflare Error Codes Code Meaning Whose Fault? 520 Unknown error Origin server 521 Server down Origin server 522 Connection timeout Origin server 523 Origin unreachable DNS/network 524 Timeout Origin too slow 525 SSL handshake failed SSL mismatch Important: 520-526 errors usually mean YOUR origin server has a problem, not Cloudflare. True Cloudflare outages show completely unreachable pages. What Can Break Service Impact CDN Sites slow or unreachable DNS (1.1.1.1) Domains won't resolve Workers Serverless functions fail Pages Hosted sites offline R2 Object storage inaccessible Troubleshooting Cloudflare or origin? — 520-526 = your server. DNS errors = possibly Cloudflare Check regional status — outages are often regional