C
Evidence Grade C
Graded
accuracy verified by the review judge
Use with Hedging
Recent
62.9%
62.9% -- conversion rate improvement for Tested company landing page (2025)
A company achieved a 62.9% improvement in their conversion rate (rising from 2.7% to 4.4%) within four months after testing a few small changes on a web page.
- Changes included headline modification, image update, and reducing ad copy by ~50%.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
62.9%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
C
Moderate quality evidence
Useful directional data with some methodological gaps. Treat as indicative rather than definitive -- corroborate before citing in formal research.
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Sources (3)
B2BMarketingBiz.com
Primary
Tier C
https://www.inetasia.com/articles/best-online-marketing-practice-dont-just-know-your-product/ ↗
Source Article
Website Testing Guide to Improve Conversion Rate | Inetasia
By Gregory Smyth
Testing is a critical part of the website design process in digital marketing. Unfortunately, it is still one of the most neglected activities. Many companies continue to go with their gut instincts, or with what works for them like in traditional marketing, forgetting that the digi…
Also cited by
MarketingSherpa / B2BMarketingBiz
https://web.archive.org/web/20061020103523id_/http://www.b2bmarketingbiz.com/?co…
2026-09-23
B2BMarketingBiz.com (MarketingSherpa network)
https://web.archive.org/web/20061020102049id_/http://www.b2bmarketingbiz.com/?co…
2026-09-21
Original Research
B2BMarketingBiz.com
· Original study ↗
Methodology
Relative improvement in conversion rate (2.7% to 4.4%) achieved within four months
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Suggested hedging: According to limited, single-source data, with unverified sample sizes...
Plain Text
Tested company landing page: 62.9% conversion rate improvement. Source: B2BMarketingBiz.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/website-testing-conversion-rate-relative-improvement
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<blockquote cite="https://lighthousedata.io/data/website-testing-conversion-rate-relative-improvement" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>62.9%</strong> -- conversion rate improvement for Tested company landing page<br><small>Source: B2BMarketingBiz.com (2025) · <a href="https://lighthousedata.io/data/website-testing-conversion-rate-relative-improvement" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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