AI Answer Engine Citation Behavior An Empirical Analysis of the GEO16 Framework

• URL: http://arxiv.org/abs/2509.10762v1
• Date: Sat, 13 Sep 2025 00:29:32 GMT
• Title: AI Answer Engine Citation Behavior An Empirical Analysis of the GEO16 Framework
• Abstract summary: GEO-16 is a framework that converts on page quality signals into banded pillar scores and a normalized GEO score G that ranges from 0 to 1.<n>We collected 1,702 citations across three engines and audited 1,100 URLs.<n>In our corpus, the engines differed in the GEO quality of the pages they cited, and pillars related to Metadata and Freshness, Semantic HTML, and Structured Data showed the strongest associations with citation.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: AI answer engines increasingly mediate access to domain knowledge by generating responses and citing web sources. We introduce GEO-16, a 16 pillar auditing framework that converts on page quality signals into banded pillar scores and a normalized GEO score G that ranges from 0 to 1. Using 70 product intent prompts, we collected 1,702 citations across three engines (Brave Summary, Google AI Overviews, and Perplexity) and audited 1,100 unique URLs. In our corpus, the engines differed in the GEO quality of the pages they cited, and pillars related to Metadata and Freshness, Semantic HTML, and Structured Data showed the strongest associations with citation. Logistic models with domain clustered standard errors indicate that overall page quality is a strong predictor of citation, and simple operating points (for example, G at least 0.70 combined with at least 12 pillar hits) align with substantially higher citation rates in our data. We report per engine contrasts, vertical effects, threshold analysis, and diagnostics, then translate findings into a practical playbook for publishers. The study is observational and focuses on English language B2B SaaS pages; we discuss limitations, threats to validity, and reproducibility considerations.

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