C
Evidence Grade C
Graded
accuracy verified by the review judge
Use with Hedging
Current
7%
7% -- conversion reduction per second page delay for website conversions (2026)
A one-second delay in page response time can lead to a 7% reduction in conversions.
- Attributed to an eMarketer report with no specific study date or methodology details provided.
Attribution:
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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)
eMarketer
Primary
Tier C
https://ppcgrowthstudio.com/willow-and-thread-marketing-wins-in-2026/ ↗
Source Article
Marketing Wins in 2026: Keyword Research & SEO Tactics
Sarah ran a small, independent online boutique, “Willow & Thread,” specializing in handcrafted artisanal jewelry. Her designs were unique, her craftsmanship impeccable, but her sales plateaued. She’d tried everything she thought she knew about online visibility: posting on social media, occasionally…
Also cited by
Stambaugh Designs
https://www.stambaughdesigns.co/guides/wordpress-vs-custom-website-cost/
2026-09-16
Original Research
eMarketer
· Original study ↗
Methodology
Attributed in-article to an eMarketer report; no specific report title or publication year given. Cited as: a one-second delay in page response can result in a 7% reduction in conversions.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Suggested hedging: According to limited, single-source data, with unverified sample sizes...
Plain Text
website conversions: 7% conversion reduction per second page delay. Source: eMarketer (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/one-second-page-delay-7-pct-conversion-drop
HTML Embed
<blockquote cite="https://lighthousedata.io/data/one-second-page-delay-7-pct-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 reduction per second page delay for website conversions<br><small>Source: eMarketer (2026) · <a href="https://lighthousedata.io/data/one-second-page-delay-7-pct-conversion-drop" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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