B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
5,600
5,600 -- expired domains still referenced from hacker news for Revised expired domains directory (2026-09)
About 5,600 expired domains listed in Revised's directory are still referenced from Hacker News as of September 2026.
- Approximate figure ('about 5,600')
- Based on Revised's internal directory of roughly 11,000 expired domains
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
5,600
Unit
Count
Data Vintage
2026-09
Entity
Geography
Global
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
Revised (getrevised.com)
Primary
Tier B
https://getrevised.com/knowledge/ai-and-geo/what-is-geo ↗
Source Article
Generative Engine Optimization (GEO): What It Is and Where Domains Fit
Generative Engine Optimization (GEO): What It Is and Where Domains Fit
GEO is the work of getting cited by answer engines rather than ranked by a results page. What the term means, how ChatGPT, Perplexity and Google AI Overviews actually pick sources according to their own docs, a checklist for a ne…
Original Research
Revised (getrevised.com)
· Original study ↗
Methodology
First-party directory data from Revised
Methodology documented
Segmentation
IndustryMedia
RegionGlobal
RoleAll marketers
Channelmulti-channel
Cite this stat
Plain Text
Revised expired domains directory: 5,600 expired domains still referenced from hacker news. Source: Revised (getrevised.com) (2026-09). Via Lighthouse Intelligence -- https://lighthousedata.io/data/expired-domains-hackernews-references
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<blockquote cite="https://lighthousedata.io/data/expired-domains-hackernews-references" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>5,600</strong> -- expired domains still referenced from hacker news for Revised expired domains directory<br><small>Source: Revised (getrevised.com) (2026-09) · <a href="https://lighthousedata.io/data/expired-domains-hackernews-references" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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