B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
200
200 -- testing programs studied for A/B testing programs (Speero & Kameleoon study) (2026)
Speero and Kameleoon studied over 200 testing programs.
- Source states 200+
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
200
Unit
Count
Data Vintage
2026
Entity
Sample Size
200
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
Speero and Kameleoon
Primary
Tier C
https://kirro.io/client-side-vs-server-side-a-b-testing ↗
Source Article
Server side testing vs client side: the honest comparison
Client-side testing changes what visitors see inside the browser. Server side testing decides what to send before the page even loads. That’s the core difference between client side vs server side A/B testing.
For most small businesses testing headlines, buttons, and landing pages, client-side does …
Original Research
Speero and Kameleoon
· Original study ↗
Methodology
Speero/Kameleoon study of 200+ testing programs, cited by Kirro
Methodology documented
Segmentation
IndustryTechnology
Company SizeAll sizes
RoleAll marketers
Channelmulti-channel
Cite this stat
Plain Text
A/B testing programs (Speero & Kameleoon study): 200 testing programs studied. Source: Speero and Kameleoon (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/speero-kameleoon-programs-study
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<blockquote cite="https://lighthousedata.io/data/speero-kameleoon-programs-study" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>200</strong> -- testing programs studied for A/B testing programs (Speero & Kameleoon study)<br><small>Source: Speero and Kameleoon (2026) · <a href="https://lighthousedata.io/data/speero-kameleoon-programs-study" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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