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Web前端性能监控是由阿里云CDN联合应用实时监控服务（ARMS）推出的功能，通过在网页中引入监测代码来实现对Web用户真实访问数据的实时监控。帮助您了解站点性能，例如页面打开速度（测速）、页面稳定性（JS诊断错误）和外部服务调用成功率（API）等。

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Web应用防火墙（WAF）

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