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Safari iOS 26 user-agent freeze: what it means for attribution

By Roy Yanai·2025年9月28日·5 分钟阅读

摘要

苹果在iOS 26中冻结了Safari(包括应用内网页视图)的User-Agent字符串,不再向网站或测量工具透露当前iOS版本。这一变化使得依赖UA中操作系统版本等细粒度信号的归因平台和营销技术工具,在安装、重定向和用户事件的归因分析中可能面临精度下降的问题。

但这对AppsFlyer客户没有影响。AppsFlyer工程团队早在iOS 26测试版阶段就检测到该变化,并开发了前瞻性的兼容方案:通过识别冻结的UA(如显示“iOS 18.6”),并结合设备级与聚合信号进行版本校正,确保了归因模型的准确性。

对于AppsFlyer客户而言,无需任何操作,修复已自动生效。归因数据将继续保持完整准确,这体现了AppsFlyer在快速演变的隐私环境下,持续保护测量、归因和分析数据完整性的承诺。

总体而言,虽然苹果的UA冻结是行业向隐私增强体验迈进的又一步,给归因提供商带来了技术挑战,但AppsFlyer已提前应对,确保了用户获取、投放策略和增量提效等关键环节的数据信任。

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