B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
1%
1% -- conversion rate lift per 100ms lcp improvement for DTC ecommerce stores (2026)
Every 100 ms of LCP improvement is associated with roughly a 1 percent gain in conversion rate for DTC ecommerce stores.
- Approximation ('roughly 1 percent')
- Based on a mix of public case studies and agency client data
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
1%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
2,000
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
Digital Heroes
Primary
Tier C
https://digitalheroesco.com/journal/shopify-core-web-vitals-guide/ ↗
Source Article
Shopify Core Web Vitals Guide 2026: The Pillar
Three metrics. Each one measures revenue.
Core Web Vitals are three metrics Google uses as ranking signals: LCP under 2.5 seconds (when the page feels loaded), INP under 200 ms (how snappy interactions feel), CLS under 0.1 (how stable the layout is). All measured at the 75th percentile per CrUX fiel…
Original Research
Digital Heroes
· Original study ↗
Methodology
Meta-analysis of public case studies plus agency client data across 2,000-plus engagements; every 100 ms of LCP improvement associated with ~1% conversion rate gain in DTC.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
DTC ecommerce stores: 1% conversion rate lift per 100ms lcp improvement. Source: Digital Heroes (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/lcp-improvement-conversion-lift-dtc
HTML Embed
<blockquote cite="https://lighthousedata.io/data/lcp-improvement-conversion-lift-dtc" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>1%</strong> -- conversion rate lift per 100ms lcp improvement for DTC ecommerce stores<br><small>Source: Digital Heroes (2026) · <a href="https://lighthousedata.io/data/lcp-improvement-conversion-lift-dtc" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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