B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
35%
35% -- conversion lift ab testing for Companies continuously A/B testing websites (2026)
Companies that continuously A/B test their websites experience an average conversion lift of 35% over those that do not.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
35%
Unit
Percentage
Data Vintage
2026
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Invesp
Primary
Tier C
https://sanguinesa.com/is-your-website-optmizing-for-conversions/ ↗
Source Article
Is Your Website Optmizing for Conversions?
Is Your Website Optmizing for Conversions?
Kevin Chern
“Design is not just what it looks like and feels like. Design is how it works.” – Steve Jobs
Consider this real-life scenario: A small consulting firm had decent website traffic, over 3,000 visitors monthly, but only received around 5-10 inquiri…
Original Research
Invesp
· Original study ↗
Methodology
Vs companies that don't test; cited to Invesp
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Companies continuously A/B testing websites: 35% conversion lift ab testing. Source: Invesp (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ab-testing-conversion-lift-invesp
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<blockquote cite="https://lighthousedata.io/data/ab-testing-conversion-lift-invesp" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>35%</strong> -- conversion lift ab testing for Companies continuously A/B testing websites<br><small>Source: Invesp (2026) · <a href="https://lighthousedata.io/data/ab-testing-conversion-lift-invesp" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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