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wiki/concepts/Viewability.md
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title: "Viewability"
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type: concept
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tags: ["viewability", "display", "brand-safety", "paid-media", "measurement"]
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sources: ["paid-media-programmatic-buyer"]
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last_updated: 2026-04-26
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---
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## Definition
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广告可见性(Viewability)是衡量数字广告是否被真实用户看到(而非仅仅被加载但不可见)的指标。MRC(Media Rating Council)定义了最低可见性标准:展示广告至少 50% 的像素在屏幕上停留 1 秒以上,Video 广告至少 50% 像素停留 2 秒以上。
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## Industry Standards
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| 标准制定方 | 要求 | 说明 |
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|-----------|------|------|
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| MRC(Media Rating Council) | 50%/1s(展示)/ 50%/2s(视频) | 最低行业标准 |
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| GroupM | 50%/2s | 更严格的可见性标准 |
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| Google Active View | 70%+ 可见展示 | 通常作为活动基准目标 |
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## Why Viewability Matters
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- **防止广告位欺诈**:仅仅加载广告不等于用户看到了
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- **品牌安全**:低可见性位置往往与低质量内容相关联
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- **效率优化**:将预算从低可见性位置转移到高可见性位置
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- **归因基础**:只有可见的展示才可能驱动品牌认知和转化
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## Optimization Levers
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- **Placement Exclusions**:排除低可见性广告位
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- **Viewability Targeting**:在 DSP 中直接设定可见性门槛竞价
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- **Supply Path Optimization**:优先选择已知高可见性发布商的交易路径
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- **Format Selection**:大尺寸格式(300x600、970x250)通常可见性更高
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## Success Benchmark
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- **目标指标**:≥70% MRC 标准可见展示率
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- **低于此标准的位置**:考虑降低出价或排除
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## Sources
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- [[paid-media-programmatic-buyer]]
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