B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
15%
15% -- add to cart rate lift for Ecommerce stores (WebMedic audits) (2025)
WebMedic consistently observes a 15% to 25% lift in add-to-cart rates when ecommerce stores place social proof inline near the CTA instead of in a separate reviews section.
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
15%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
WebMedic
Primary
Tier C
https://webmedic.com/facebook-ads-ecommerce ↗
Source Article
Facebook Ads Ecommerce: Stop Wasting Traffic | WebMedic
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Original Research
WebMedic
· Original study ↗
Methodology
First-party agency observation; range 15-25%, midpoint extracted
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Ecommerce stores (WebMedic audits): 15% add to cart rate lift. Source: WebMedic (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/social-proof-inline-add-to-cart-lift
HTML Embed
<blockquote cite="https://lighthousedata.io/data/social-proof-inline-add-to-cart-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>15%</strong> -- add to cart rate lift for Ecommerce stores (WebMedic audits)<br><small>Source: WebMedic (2025) · <a href="https://lighthousedata.io/data/social-proof-inline-add-to-cart-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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