B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
70%
70% -- consumers saying page speed affects purchase for consumers (2025)
70% of consumers report that page speed directly impacts whether they will make a purchase.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
70%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
deliveredsocial.com
Primary
Tier C
https://deliveredsocial.com/image-optimisation-for-websites/ ↗
Source Article
Image Optimisation for Websites: A Complete UK Guide
If you have ever uploaded a photo to your website and watched the page slow to a crawl, you already know the frustration. Image optimisation for websites can feel like a dark art, full of confusing file formats, compression jargon, and conflicting advice. The good news is that it does not have to be…
Original Research
deliveredsocial.com
· Original study ↗
Methodology
Blog guide citing unnamed research; original source not identified
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
consumers: 70% consumers saying page speed affects purchase. Source: deliveredsocial.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/page-speed-purchase-decision
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<blockquote cite="https://lighthousedata.io/data/page-speed-purchase-decision" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>70%</strong> -- consumers saying page speed affects purchase for consumers<br><small>Source: deliveredsocial.com (2025) · <a href="https://lighthousedata.io/data/page-speed-purchase-decision" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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