B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
68%
68% -- conversion lift for Social proof widget placed directly adjacent to the conversion action (2026)
Placing a social proof widget directly adjacent to the conversion action produces a 68% conversion lift.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
68%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
foundrycro.com
Primary
Tier C
https://foundrycro.com/blog/form-conversion-rate-benchmarks-2026/ ↗
Source Article
Form Conversion Rate Benchmarks 2026 + Free Field-Cost Calculator | Foundry CRO
The short version:
- Three-field forms convert at 25%, nearly identical to single-field forms, making three the practical sweet spot
- At seven fields, conversion drops to 12%, roughly half the leads a 3-field form would capture
- Each extra field above three costs approximately $10.75 per lead in B…
Original Research
foundrycro.com
· Original study ↗
Methodology
Article references 'the 68% Augmentive lift'; underlying study/vendor attribution unclear
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Social proof widget placed directly adjacent to the conversion action: 68% conversion lift. Source: foundrycro.com (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/social-proof-adjacent-conversion-lift
HTML Embed
<blockquote cite="https://lighthousedata.io/data/social-proof-adjacent-conversion-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>68%</strong> -- conversion lift for Social proof widget placed directly adjacent to the conversion action<br><small>Source: foundrycro.com (2026) · <a href="https://lighthousedata.io/data/social-proof-adjacent-conversion-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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