B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
64%
64% -- email open rate increase for outreach emails with personalization (2025-05)
The average open rate for outreach emails using first-name personalization and referring to recent content is 64% higher than generic outreach.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
64%
Unit
Percentage
Data Vintage
2025-05
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
95
Source Trust
50
Citation Chain
20
Independence
30
Methodology
45
Freshness
86
Source
BuzzStream
Primary
Tier A
https://www.logicsofts.co.uk/blog/quality-outreach-vs-link-spam/ ↗
Source Article
Quality Outreach: The SEO Edge Against Link Spam in 2025
- The Backdrop: Google’s War on Link Spam Escalates
- Data Confirms the Shift Toward Relevance and Relationship
- Why Most Outreach Will Still Fail in 2025.
- Statistical analysis of a Case Study Quality Beats Quantity at Scale
- What the Experts Are Saying
- Platforms and Tools Supporting Quality O…
Original Research
BuzzStream
· Original study ↗
Methodology
BuzzStream analysis
Methodology documented
Segmentation
Channelcommon_crawl
Cite this stat
Plain Text
outreach emails with personalization: 64% email open rate increase. Source: BuzzStream (2025-05). Via Lighthouse Intelligence -- https://lighthousedata.io/data/buzzstream-email-open-rate-increase
HTML Embed
<blockquote cite="https://lighthousedata.io/data/buzzstream-email-open-rate-increase" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>64%</strong> -- email open rate increase for outreach emails with personalization<br><small>Source: BuzzStream (2025-05) · <a href="https://lighthousedata.io/data/buzzstream-email-open-rate-increase" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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