B
Evidence Grade B
Graded
under review
Safe to Cite
Current
75%
75% -- users not returning after slow load for website users (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
75%
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
banc.digital
Primary
Tier C
https://banc.digital/blog/website-page-speed-matters-improve/ ↗
Source Article
Website Page Speed: Why It Matters and How to Improve It
Original Research
banc.digital
· Original study ↗
Methodology
Cited as 'studies have shown'; original study not named
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
website users: 75% users not returning after slow load. Source: banc.digital (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/75pct-wont-return-after-4s-load
HTML Embed
<blockquote cite="https://lighthousedata.io/data/75pct-wont-return-after-4s-load" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>75%</strong> -- users not returning after slow load for website users<br><small>Source: banc.digital (2026) · <a href="https://lighthousedata.io/data/75pct-wont-return-after-4s-load" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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