Cloudflare Bot Detection Blocks Legitimate Programmatic API Requests
Developers making HTTP requests from code (VB.NET, C#, Python) to endpoints protected by Cloudflare are blocked even when the same request works fine in a browser. Cloudflare fingerprints far more than the user-agent — TLS handshake, header ordering, and browser entropy — making legitimate automation extremely difficult without emulating a full browser runtime.
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Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.