C
Evidence Grade C
Use with Hedging
Dated
35.77%
35.77% -- conversion rate increase for Sign-Up Page (2009)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
35.77%
Unit
Percentage
Data Vintage
2009
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
95
Source Trust
50
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Sources (2)
MarketingExperiments
Primary
Tier A
http://www.marketingexperiments.com/blog/2009/11?rel=author ↗
Source Article
2009 Marketing Blueprint - MarketingExperiments
It’s easy to fall into a rut with optimization and testing.
Over time, as you discover which tactics and best practices get results, and then apply them to other channels or pages ad infinitum, you can get lulled into a false sense of security.
There’s a time to apply best practices and follow the r…
Also cited by
Digital Drew SEM
https://digitaldrewsem.com/digital-marketing-agency-ues/
2026-08-14
Original Research
MarketingExperiments
· Original study ↗
Methodology
A/B test
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Suggested hedging: According to limited, single-source data, based on claims without stated methodology, with unverified sample sizes...
Plain Text
Sign-Up Page: 35.77% conversion rate increase. Source: MarketingExperiments (2009). Via Lighthouse Intelligence -- https://lighthousedata.io/data/sign-up-conversion-rate-increase-case-study-4
HTML Embed
<blockquote cite="https://lighthousedata.io/data/sign-up-conversion-rate-increase-case-study-4" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>35.77%</strong> -- conversion rate increase for Sign-Up Page<br><small>Source: MarketingExperiments (2009) · <a href="https://lighthousedata.io/data/sign-up-conversion-rate-increase-case-study-4" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Related Statistics
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.