B
Evidence Grade B
Graded
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Safe to Cite
Recent
93%
93% -- conversion rate lift for Email Optimization Shop email campaign (preheader text A/B test) (2025-07)
In an A/B test changing only the preheader text, the test group conversion rate was nearly 93% higher than the control group.
- Value is approximate ('nearly 93% higher')
- Single A/B test case study for an online retailer client targeting U.S. military veterans and their families
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
93%
Unit
Percentage
Data Vintage
2025-07
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
50
Freshness
95
Source
Email Optimization Shop
Primary
Tier B
https://emailopshop.com/preheader-text-6-models-and-a-case-study-with-a-96-lift-in-revenue-per-email… ↗
Source Article
Preheader Text: How We Boosted Email Revenue by 95.6%
I used to be obsessed with preheader text, which we used to call ‘snippets.’ Not “watching Love Island USA every night with popcorn” obsessed—but close. I even wrote a blog post on it back in the day.
That was then. These days I still pay attention to preheaders (I’d be committing email malpractice …
Original Research
Email Optimization Shop
· Original study ↗
Methodology
Follow-on analysis of the same preheader A/B test: test-group conversion rate was 'nearly 93% higher' than control (approximate value, not an exact figure). Single-campaign case study; list size not disclosed; post originally published January 2017, updated July 2025.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Email Optimization Shop email campaign (preheader text A/B test): 93% conversion rate lift. Source: Email Optimization Shop (2025-07). Via Lighthouse Intelligence -- https://lighthousedata.io/data/preheader-test-conversion-rate-lift
HTML Embed
<blockquote cite="https://lighthousedata.io/data/preheader-test-conversion-rate-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>93%</strong> -- conversion rate lift for Email Optimization Shop email campaign (preheader text A/B test)<br><small>Source: Email Optimization Shop (2025-07) · <a href="https://lighthousedata.io/data/preheader-test-conversion-rate-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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