B
Evidence Grade B
Graded
under review
Safe to Cite
Current
20%
20% -- conversion drop rate per second for mobile page load (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
20%
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.
Score breakdown
Extraction
50
Source Trust
90
Citation Chain
20
Independence
50
Methodology
30
Freshness
95
Sources (2)
Google
Primary
Tier C
https://developers.google.com/speed/testmysite ↗
Source Article
Google Updates 'Test My Site' to Show How Many Visitors You're Losing
Google has released a new set of features for its Test My Site tool.
With statistics that indicate most sites lose half their visitors while waiting for a page to load, Google has updated the tool to show how many visitors you may be losing due to page speed.
“When it comes to mobile speed, every se…
Also cited by
forbes.com
https://www.forbes.com/
2026-08-15
Original Research
Google
· Original study ↗
Segmentation
Industrymarketing
Cite this stat
Plain Text
mobile page load: 20% conversion drop rate per second. Source: Google (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/google-test-my-site-conversion-drop
HTML Embed
<blockquote cite="https://lighthousedata.io/data/google-test-my-site-conversion-drop" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>20%</strong> -- conversion drop rate per second for mobile page load<br><small>Source: Google (2026) · <a href="https://lighthousedata.io/data/google-test-my-site-conversion-drop" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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