B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
8.4%
8.4% -- conversion rate lift from 0 1s mobile speed improvement for retail eCommerce (2025)
A 0.1 second improvement in mobile site speed can increase retail conversion rates by 8.4%.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
8.4%
Unit
Percentage
Data Vintage
2025
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
kijo.london
Primary
Tier C
https://kijo.london/blog/ecommerce-optimisation/ ↗
Source Article
eCommerce Optimisation: Conversion Tactics for WooCommerce
The Marketing Manager’s Guide to eCommerce Optimisation Conversion Tactics on WooCommerce
/ Table of contents
- eCommerce Optimisation
- What is Conversion Rate (eCommerce) Optimisation (CRO)?
- Testing Your CRO Strategies: Illuminate Every Step With Actual Knowledge
- eCommerce at Pace: The Importa…
Original Research
kijo.london
· Original study ↗
Methodology
Cited in agency blog without attribution
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
retail eCommerce: 8.4% conversion rate lift from 0 1s mobile speed improvement. Source: kijo.london (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/site-speed-conversion-lift-8-4
HTML Embed
<blockquote cite="https://lighthousedata.io/data/site-speed-conversion-lift-8-4" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>8.4%</strong> -- conversion rate lift from 0 1s mobile speed improvement for retail eCommerce<br><small>Source: kijo.london (2025) · <a href="https://lighthousedata.io/data/site-speed-conversion-lift-8-4" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.