> For the complete documentation index, see [llms.txt](https://help.impact.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.impact.com/other/zh/reference-documentation/impactcom-data-retention.md).

# impact.com 数据保留

虽然 impact.com 保留的大多数数据会永久保留，但以下数据点仅在指定期限内保留。

| 数据点        | 保留期限  |
| ---------- | ----- |
| 点击事件       | 12 个月 |
| 展示事件       | 12 个月 |
| Postbid 事件 | 3 个月  |
| 欺诈汇总数据     | 13 个月 |


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