B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
25%
25% -- conversion lift from layered social proof for WebMedic audited ecommerce stores (2026)
Layering 4–6 types of social proof increases total ecommerce conversion by 25–40% compared to using reviews alone.
- Reported as a range (25–40%)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
25%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
80
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
WebMedic
Primary
Tier B
https://webmedic.com/ecommerce-social-proof-guide ↗
Source Article
Social Proof for Ecommerce: 10 Types | WebMedic
Is your store leaking revenue?
Find out exactly where you're losing sales — takes 2 minutes.
Reviews alone won't cut it. Here's the full taxonomy of proof that converts browsers into buyers
What Is Social Proof in Ecommerce?
Trust sells. Talent doesn't.
Social proof in ecommerce is the psychological…
Original Research
WebMedic
· Original study ↗
Methodology
WebMedic audit data across 80+ stores; range 25–40%, midpoint extracted
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
WebMedic audited ecommerce stores: 25% conversion lift from layered social proof. Source: WebMedic (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/webmedic-social-proof-layering-lift
HTML Embed
<blockquote cite="https://lighthousedata.io/data/webmedic-social-proof-layering-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25%</strong> -- conversion lift from layered social proof for WebMedic audited ecommerce stores<br><small>Source: WebMedic (2026) · <a href="https://lighthousedata.io/data/webmedic-social-proof-layering-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.