Cloudflare Traces 公测：代理层转为 OpenTelemetry Span 并改按量计费
原标题：Cloudflare Traces Turns the Proxy Layer into OpenTelemetry Spans, with New Volume-Based Pricing
AI 摘要
Cloudflare 将 Traces 功能开放公测，把安全规则、缓存决策、路由、Worker 执行和源站处理等代理层环节自动转换为 OpenTelemetry span，无需编写埋点代码。该功能支持 W3C traceparent 上下文传播、基于规则引擎的采样，并通过 OTLP 导出到任意兼容后端。同时 Cloudflare 调整了 Workers Tracing 的计费方式，从按 span 计费改为按数据摄入量和存储量计费，新定价于 2026 年 12 月 1 日生效。
正文节选
Cloudflare has recently made Traces available in open beta, extending automatic tracing from Workers to the rest of the request path. Security rules, transformations, cache decisions, routing, Worker execution, and origin handling now appear as OpenTelemetry spans in a single request-level timeline, without any instrumentation to write. A pricing change arrives with it, and it applies to Workers Tracing too. This fills a well-known gap for developers running distributed tracing through a proxy.