B
Evidence Grade B
Safe to Cite
Current
50%
50% -- viewability definition for ad impressions (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
50%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
95
Source Trust
90
Citation Chain
90
Independence
30
Methodology
45
Freshness
95
Source
Amazon Ads
Primary
Tier A
https://advertising.amazon.com/library/guides/viewability?ref_=a20m_us_lbr_gd_daba_gd_gd_vwblty ↗
Source Article
Viewability – Definition, measurement, and tips
Viewability
Viewability is an digital advertising metric that reports on ad impressions seen by humans. Understanding and improving ad viewability can help improve the effectiveness of your marketing campaigns.
Start using Amazon Ads to display your products and create campaigns.
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Original Research
Amazon Ads
· Original study ↗
Methodology
IAB and MRC's viewability standards definition
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ad impressions: 50% viewability definition. Source: Amazon Ads (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/amazon-ads-viewability-definition
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<blockquote cite="https://lighthousedata.io/data/amazon-ads-viewability-definition" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>50%</strong> -- viewability definition for ad impressions<br><small>Source: Amazon Ads (2026) · <a href="https://lighthousedata.io/data/amazon-ads-viewability-definition" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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