精选理由
Cloudflare出了个Precursor，靠分析用户全程行为来抓机器人，比旧方法更准，还不会误伤正常人。
Cloudflare推出Precursor，一种新的持续行为验证引擎，用于机器人管理。它通过分析用户会话级别的行为模式来识别高级自动化攻击，如凭证填充、网页抓取等。Precursor能将会话行为转化为机器人检测信号，相比传统方法具有更高精度，并减少对合法用户的干扰。该引擎已集成到Cloudflare Bot Management产品中。
原文 · Cloudflare Blog
Introducing Precursor: detecting agentic behavior with continuous client-side signals
Precursor, our new continuous behavioral validation engine for bot management, offers visibility into how humans and bots actually interact across the full user journey. By turning session-level behavior into bot detection signals, it identifies advanced automation with higher precision — while reducing friction for legitimate users.