B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
31%
31% -- sales lift for direct-to-consumer email marketing (2025)
Adding the first name of customers to the subject line of emails used in direct-to-consumer marketing increased sales by 31%.
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
31%
Unit
Percentage
Data Vintage
2025
Entity
Geography
Global
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
60
Freshness
95
Source
The Journal of Interactive Marketing
Primary
Tier B
https://threecrownsmarketing.com/blog/refresh-marketing-simple-copy-tweak/ ↗
Source Article
Refresh Your Marketing Communications | Three Crowns
Refresh Your Marketing Communications With This Simple Copy Tweak
Johnny Sandquist
Founder, Three Crowns Copywriting & Marketing
One of the most impactful discussions on marketing I’ve ever heard is the famous “Start with Why” TED Talk from influential consultant and author, Simon Sinek.
In his talk…
Original Research
The Journal of Interactive Marketing
· Original study ↗
Methodology
Cited research from The Journal of Interactive Marketing
Methodology documented
Segmentation
IndustryRetail
RegionGlobal
RoleAll marketers
Channelemail
Cite this stat
Plain Text
direct-to-consumer email marketing: 31% sales lift. Source: The Journal of Interactive Marketing (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/personalized-email-subject-line-sales-lift
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<blockquote cite="https://lighthousedata.io/data/personalized-email-subject-line-sales-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>31%</strong> -- sales lift for direct-to-consumer email marketing<br><small>Source: The Journal of Interactive Marketing (2025) · <a href="https://lighthousedata.io/data/personalized-email-subject-line-sales-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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