B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
40%
40% -- content visibility improvement for Generative engine optimization tactics (Princeton GEO study) (2026)
Tactics from the Princeton GEO study improve content visibility by up to 40%.
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
40%
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Princeton University
Primary
Tier B
https://www.amicited.com/da/author/vzeman/index/ ↗
Source Article
Viktor Zeman
Original Research
Princeton University
· Original study ↗
Methodology
Cites Princeton GEO research study
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Generative engine optimization tactics (Princeton GEO study): 40% content visibility improvement. Source: Princeton University (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/princeton-geo-visibility-improvement-40
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<blockquote cite="https://lighthousedata.io/data/princeton-geo-visibility-improvement-40" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>40%</strong> -- content visibility improvement for Generative engine optimization tactics (Princeton GEO study)<br><small>Source: Princeton University (2026) · <a href="https://lighthousedata.io/data/princeton-geo-visibility-improvement-40" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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