C
Evidence Grade C
Graded
accuracy verified by the review judge
Use with Hedging
Current
16%
16% -- customer satisfaction decrease rate for website with 1-second delay (2026)
A one-second delay in page load time decreases customer satisfaction by 16%.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
16%
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
30
Freshness
95
Sources (2)
Matthew Woodward
Primary
Tier A
https://www.searchlogistics.com/learn/reviews/wp-rocket/ ↗
Source Article
WP Rocket Review - The Fastest Way To Speed Up Your Site
WP Rocket Review – The Fastest Way To Speed Up Your Site
- Matthew Woodward
- Updated on May 30, 2026
If you’re looking to dominate traffic and sales…
Speed is key!
What do I mean by this?
- A one-second delay reduces page views by 11%.
- It decreases customer satisfaction by 16%, resulting in a 7% …
Also cited by
Asphalt Themes
https://asphaltthemes.com/free-online-css-minifiers/
2026-09-06
Original Research
Matthew Woodward
· Original study ↗
Segmentation
Industrymarketing
Cite this stat
Suggested hedging: According to limited, single-source data, based on claims without stated methodology, with unverified sample sizes...
Plain Text
website with 1-second delay: 16% customer satisfaction decrease rate. Source: Matthew Woodward (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/wp-rocket-speed-impact-16-7
HTML Embed
<blockquote cite="https://lighthousedata.io/data/wp-rocket-speed-impact-16-7" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>16%</strong> -- customer satisfaction decrease rate for website with 1-second delay<br><small>Source: Matthew Woodward (2026) · <a href="https://lighthousedata.io/data/wp-rocket-speed-impact-16-7" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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