C
Evidence Grade C
Graded
under review
Use with Hedging
Current
7%
7% -- conversion rate reduction for Page load time delay of 100ms on conversion rates (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
7%
Unit
Percentage
Data Vintage
2026
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 (2)
Google
Primary
Tier C
https://forgecro.com/shopify-ab-testing-guide-8/ ↗
Source Article
Shopify A/B Testing Guide: 12 Tactics to Lift Conversions (2026) - forgecro.com
Shopify A/B Testing Guide: 12 Tactics to Lift Conversions in 2026
Your Shopify store is getting traffic but not the sales you expected. Before you pour more budget into ads, you need to know what’s actually broken — and A/B testing is how you find out. According to VWO’s 2025 e-commerce benchmark re…
Also cited by
2026-09-18
Original Research
Google
· Original study ↗
Methodology
Cited to Google's research; no date given for the underlying study.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Suggested hedging: According to limited, single-source data, with unverified sample sizes...
Plain Text
Page load time delay of 100ms on conversion rates: 7% conversion rate reduction. Source: Google (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/google-100ms-delay-conversion-drop
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<blockquote cite="https://lighthousedata.io/data/google-100ms-delay-conversion-drop" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>7%</strong> -- conversion rate reduction for Page load time delay of 100ms on conversion rates<br><small>Source: Google (2026) · <a href="https://lighthousedata.io/data/google-100ms-delay-conversion-drop" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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