B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Dated
10%
10% -- visitor loss rate for website visitors (2021)
A one-second delay in site loading time can result in 10% fewer visitors.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
10%
Unit
Percentage
Data Vintage
2021
Entity
Geography
Global
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
josiennation.com
Primary
Tier C
https://josiennation.com/site-speed-index-pagespeed/ ↗
Source Article
The importance of Pagespeed for SEO - Freelance SEO Consultant - Josien Nation
Josien Nation
Published on
January 16, 2021
Google (and other search engines) focuses more and more on user experience. Pagespeed is a big part of that and it already has a big influence on your ranking. Therefore, optimizing the loading time of your website is essential. Both for the rankings and t…
Original Research
josiennation.com
· Original study ↗
Methodology
Cited by author without named original study
Methodology documented
Segmentation
IndustryMedia
RegionGlobal
RoleAll marketers
Channelmulti-channel
Cite this stat
Plain Text
website visitors: 10% visitor loss rate. Source: josiennation.com (2021). Via Lighthouse Intelligence -- https://lighthousedata.io/data/one-second-delay-visitors-loss
HTML Embed
<blockquote cite="https://lighthousedata.io/data/one-second-delay-visitors-loss" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>10%</strong> -- visitor loss rate for website visitors<br><small>Source: josiennation.com (2021) · <a href="https://lighthousedata.io/data/one-second-delay-visitors-loss" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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