SEO Strength vs GEO Signal Coverage: A Structural Audit of 200 Commercial Homepages audituniversepro.com

Deterministic structural audit of 200 commercial homepages across four sectors
(hospitality, professional services, ecommerce, B2B SaaS). Every page scored higher
on the framework’s SEO component than its GEO component, median gap 49 points.
Of the 160 pages with strong SEO scores, all 160 were missing at least two of five
signals (author, date, sources, FAQ structure, TLDR). Open dataset, reproducible
method, DOI. Measures structural presence only — no retrieval or citation data.