B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
1,064 days
1,064 days -- average age of ai cited urls days for AI answer engines (ChatGPT, Perplexity, Gemini) (2026)
AI-cited URLs are on average 1,064 days old.
- Based on a study of approximately 17 million AI citations
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
1,064 days
Unit
Duration Days
Data Vintage
2026
Entity
Sample Size
17,000,000
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
35
Freshness
95
Source
Ahrefs
Primary
Tier B
https://aiboost.co.uk/citation-half-life-by-industry-uk/ ↗
Source Article
Citation Half
Original Research
Ahrefs
· Original study ↗
Methodology
Ahrefs analysis of approximately 17 million AI citations
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
AI answer engines (ChatGPT, Perplexity, Gemini): 1,064 days average age of ai cited urls days. Source: Ahrefs (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-cited-urls-average-age-ahrefs-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-cited-urls-average-age-ahrefs-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>1,064 days</strong> -- average age of ai cited urls days for AI answer engines (ChatGPT, Perplexity, Gemini)<br><small>Source: Ahrefs (2026) · <a href="https://lighthousedata.io/data/ai-cited-urls-average-age-ahrefs-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.