Category: The GEO Log
Ongoing experiments and observations from The GEO Lab
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Perplexity Cites Soft-Brand Queries, Not Generic Ones: 51% vs 0%
Read more →: Perplexity Cites Soft-Brand Queries, Not Generic Ones: 51% vs 0%Soft-brand queries were cited by Perplexity 51.1% of the time versus 0% for generic queries across 70 measurements in E031. Dataset, method and caveats.
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How AI Citation Varies by Query Type: 750 Measurements
Read more →: How AI Citation Varies by Query Type: 750 MeasurementsAI citation rate varies by query type. In 750 controlled measurements on Perplexity, how-to phrased queries cited the same pages at 38.7% while direct fact queries cited at 9.3%. Pre-registered…
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E108: I Ran a Stranger’s 50-Case Test Against My Instrument. The One Disagreement Was the Finding.
Read more →: E108: I Ran a Stranger’s 50-Case Test Against My Instrument. The One Disagreement Was the Finding.A blind run of citation-check against 50 external test cases. The results: 78/79 agreement where the instruments overlap, one construct boundary exposed, and a quantified map of what the instrument…
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Google AI Mode and AI Overview Are Separate Citation Surfaces
Read more →: Google AI Mode and AI Overview Are Separate Citation SurfacesGoogle AI Mode cited The GEO Lab on 20/30 checks where AI Overview cited it on 0/10 — zero overlap. A measurement that reads only the AIO block is blind…
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Does Agent-Readiness Conformance Predict AI Citation? Pre-Registering the Test
Read more →: Does Agent-Readiness Conformance Predict AI Citation? Pre-Registering the TestTwo agent-readiness tools score the same site with near-zero overlap. This pre-registration tests whether conformance predicts AI citation after controlling for domain authority. Stated prior: null.
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Tier 1 vs Tier 2 Query Citation Gap: Experimental Evidence
Read more →: Tier 1 vs Tier 2 Query Citation Gap: Experimental Evidence25 Tier 2 checks. Zero citations. 25 Tier 1 checks. 20 citations. Same site, same content, five consecutive days. The gap didn’t close once.
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Does Query Phrasing Decide Citation Rate? Pre-Registering E026
Read more →: Does Query Phrasing Decide Citation Rate? Pre-Registering E026Does Query Phrasing Decide Citation Rate? Pre-Registering E026 By Artur Ferreira · The GEO Lab · Published: 9 June 2026 · Version 1.0 Does query phrasing change citation rate? 150…
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Fan-out Query Length and Citation Rate: 225 Queries, Inverted Result
Read more →: Fan-out Query Length and Citation Rate: 225 Queries, Inverted ResultPre-registered prediction falsified. 225 Perplexity measurements: short queries cited at 61%, long queries at 16%. The 45pp gap holds across five days. Mechanism: namespace drift, not content quality.