> For the complete documentation index, see [llms.txt](https://arkdocs.analysys.cn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://arkdocs.analysys.cn/integration/sdk/sdk-faq/web-lose.md).

# Web页面中发现丢失某一个事件

优先同步加载SDK，弊端在弱网络环境下，可能会有较长的加载时间影响客户体验建，议换服务端SDK：如Java、PHP等SDK 对某一些重要事件进行单独上报。