B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
90%
90% -- bounce probability increase for Mobile web pages (Google study) (2026)
As mobile page load time increases from 1 second to 5 seconds, the probability of bounce increases by 90%, according to a Think with Google study.
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Lighthouse Research Team
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Evidence graded
Value
90%
Unit
Percentage
Data Vintage
2026
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Think with Google
Primary
Tier C
https://ppcgrowthstudio.com/beyond-1-ppc-strategies-that-actually-earn/ ↗
Source Article
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Did you know that less than 1% of all Google Ads accounts consistently achieve a return on ad spend (ROAS) above 5:1 for more than six months? This isn’t just about throwing money at the wall; it’s about precision, data-driven decisions, and understanding the nuances of each platform. We offer case …
Original Research
Think with Google
· Original study ↗
Methodology
Cited Think with Google study; bounce probability at 5-second load time
Methodology documented
Segmentation
Industrymarketing
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Plain Text
Mobile web pages (Google study): 90% bounce probability increase. Source: Think with Google (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/bounce-probability-page-load-5s
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<blockquote cite="https://lighthousedata.io/data/bounce-probability-page-load-5s" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>90%</strong> -- bounce probability increase for Mobile web pages (Google study)<br><small>Source: Think with Google (2026) · <a href="https://lighthousedata.io/data/bounce-probability-page-load-5s" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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