B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
7%
7% -- email unsubscribe rate reduction for Double opt-in email lists (vs. single opt-in email lists) (2023)
Double opt-in email lists have a 7% lower unsubscribe rate compared to single opt-in email lists.
- Study conducted by MailChimp on 30,000 users comparing double opt-in to single opt-in email lists
- Underlying study date not specified in source text
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
7%
Unit
Percentage
Data Vintage
2023
Entity
Sample Size
30,000
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
30
Freshness
95
Source
MailChimp
Primary
Tier C
https://www.growthcollective.com/blog/double-opt-in ↗
Source Article
Double Opt-In: What It Is And Why You Need It
Do you want an effective, sustainable method for building a healthy mailing list? Then double opt-in is for you.
Whether you work on this yourself or hire an email marketing consultant to do this for you and more, you’ll ensure that you’ll get the authentic and active email address leads your brand …
Original Research
MailChimp
· Original study ↗
Methodology
MailChimp study of 30,000 users comparing double opt-in vs single opt-in lists; figure is the reduction in unsubscribe rates for double opt-in lists. Underlying study date not stated in article.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Double opt-in email lists (vs. single opt-in email lists): 7% email unsubscribe rate reduction. Source: MailChimp (2023). Via Lighthouse Intelligence -- https://lighthousedata.io/data/mailchimp-double-optin-unsubscribe-drop
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<blockquote cite="https://lighthousedata.io/data/mailchimp-double-optin-unsubscribe-drop" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>7%</strong> -- email unsubscribe rate reduction for Double opt-in email lists (vs. single opt-in email lists)<br><small>Source: MailChimp (2023) · <a href="https://lighthousedata.io/data/mailchimp-double-optin-unsubscribe-drop" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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