B
Evidence Grade B
Graded
under review
Safe to Cite
Current
4.15%
4.15% -- long tail keyword conversion rate lift for Long-tail vs short-tail keywords (Seer Interactive client test) (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
4.15%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
12
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
90
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Seer Interactive
Primary
Tier B
http://www.searchenginejournal.com/e-commerce-software-features/53428/ ↗
Source Article
What SEO Features Should Your E
Original Research
Seer Interactive
· Original study ↗
Methodology
Keyword test run by Seer Interactive and Annie Cushing across 12 clients in six industries; long-tail conversion rates were 4.15% higher than short-tail (note: phrasing may indicate percentage points). Article undated; collected 2026-08-25.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Long-tail vs short-tail keywords (Seer Interactive client test): 4.15% long tail keyword conversion rate lift. Source: Seer Interactive (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/long-tail-conversion-lift
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<blockquote cite="https://lighthousedata.io/data/long-tail-conversion-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>4.15%</strong> -- long tail keyword conversion rate lift for Long-tail vs short-tail keywords (Seer Interactive client test)<br><small>Source: Seer Interactive (2026) · <a href="https://lighthousedata.io/data/long-tail-conversion-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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