B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
53%
53% -- bounce rate increase for webpages loading over three seconds (2025)
Bounce rates increase by 53% for pages that take more than three seconds to load according to SEO Vendor's 2025 benchmark study.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
53%
Unit
Percentage
Data Vintage
2025
Entity
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
SEO Vendor
Primary
Tier B
https://seovendor.co/free-seo-audit-pinpoint-costly-ranking-mistakes/ ↗
Source Article
Pinpoint Costly Ranking Mistakes
Original Research
SEO Vendor
· Original study ↗
Methodology
SEO Vendor 2025 benchmark study
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
webpages loading over three seconds: 53% bounce rate increase. Source: SEO Vendor (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/bounce-rate-increase-3s-load-2025
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<blockquote cite="https://lighthousedata.io/data/bounce-rate-increase-3s-load-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>53%</strong> -- bounce rate increase for webpages loading over three seconds<br><small>Source: SEO Vendor (2025) · <a href="https://lighthousedata.io/data/bounce-rate-increase-3s-load-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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