B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
36.3%
36.3% -- tests with clear winner rate for A/B tests (industry aggregate) (2026)
DRIP Agency analysis of thousands of A/B tests found that only 36.3% produce a clear winner.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
36.3%
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
DRIP Agency
Primary
Tier B
https://kirro.io/split-testing-meaning ↗
Source Article
What is split testing? Meaning, types, and examples
Split testing means showing two (or more) versions of something to different visitors, then keeping the one that gets better results. That’s it. You change a headline, a button, an entire page layout. Half your visitors see the original. The other half see the new version. The data picks the winner.…
Original Research
DRIP Agency
· Original study ↗
Methodology
DRIP Agency analysis of thousands of A/B tests
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
A/B tests (industry aggregate): 36.3% tests with clear winner rate. Source: DRIP Agency (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ab-tests-clear-winner-36-3
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ab-tests-clear-winner-36-3" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>36.3%</strong> -- tests with clear winner rate for A/B tests (industry aggregate)<br><small>Source: DRIP Agency (2026) · <a href="https://lighthousedata.io/data/ab-tests-clear-winner-36-3" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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