B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
16.6%
16.6% -- year over year session decline for eCommerce sites (Cyber 5 weekend) (2025)
Shopping sessions fell every day during Cyber 5 2025, dropping by as much as 16.6% year-over-year.
- Represents the peak single-day decline during the weekend ('down as much as 16.6%')
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
16.6%
Unit
Percentage
Data Vintage
2025
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Yottaa
Primary
Tier B
https://www.yottaa.com/resources/ecommerce-metrics-infographic/ ↗
Source Article
Top eCommerce Performance Metrics Explained | YOTTAA Infographic
Brands are constantly seeing the relevance and benefits of measuring site performance. However, many of the eCommerce performance metrics used to gauge site speed do not actually provide useful information. To help, we have rated the most common eCommerce performance metrics in order of impact on si…
Original Research
Yottaa
· Original study ↗
Methodology
Peak year-over-year decline in shopping sessions during the Cyber 5 2025 weekend, with sessions falling every day of the weekend; likely first-party observational data from Yottaa's ecommerce site-performance network.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
eCommerce sites (Cyber 5 weekend): 16.6% year over year session decline. Source: Yottaa (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/cyber-5-2025-session-decline
HTML Embed
<blockquote cite="https://lighthousedata.io/data/cyber-5-2025-session-decline" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>16.6%</strong> -- year over year session decline for eCommerce sites (Cyber 5 weekend)<br><small>Source: Yottaa (2025) · <a href="https://lighthousedata.io/data/cyber-5-2025-session-decline" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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