B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
19.3%
19.3% -- dead cited url rate for AI engines (cited URLs) (2026)
19.3% of more than 20 million cited URLs across seven AI engines were dead in a one-month snapshot.
- Vendor data rather than a controlled study
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
19.3%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
20,000,000
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
Otterly.ai
Primary
Tier B
https://artlogic.ca/insights/ai-citation-strategy ↗
Source Article
AI Citation Strategy: Becoming a Source AI Trusts
Original Research
Otterly.ai
· Original study ↗
Methodology
Otterly.ai analysis of over 20 million cited URLs across seven AI engines in a one-month snapshot; vendor data rather than a controlled study
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
AI engines (cited URLs): 19.3% dead cited url rate. Source: Otterly.ai (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-citation-dead-link-rate-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-citation-dead-link-rate-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>19.3%</strong> -- dead cited url rate for AI engines (cited URLs)<br><small>Source: Otterly.ai (2026) · <a href="https://lighthousedata.io/data/ai-citation-dead-link-rate-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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