Search and AI Research Library
A research hub connecting NIST, Stanford HAI, OECD, Google, OpenAI, Perplexity, Microsoft, IETF, W3C, Schema.org and original GEO, RAG and REG sources.
Hidden Radius studies the systems and evidence operating beneath visible search results, generated answers, recommendations and agent actions.
The company exists because modern discovery is routinely described with broad labels that conceal different technical and operational problems. Hidden Radius separates publication, crawling, indexing, entity recognition, information retrieval, generation, attribution, reliability and business action.
Its work combines primary-source research, technical inspection, evidence mapping and practical recommendations.
Hidden Radius is a standalone U.S. company. The organizations and research institutions cited throughout the site do not sponsor, certify or endorse Hidden Radius unless an explicit relationship is stated.
IRefer Club is cited only as the original source organization for REG. Hidden Radius is not presented as an IRefer property and does not use REG coverage as an IRefer sales page.
Hidden Radius does not publish a page merely to paraphrase an institution. Each authority page explains what the source contributes, what it cannot establish, how it fits the discovery stack and what a publisher, technical team or business leader can do with the information.
Pages display publication and review dates, identify primary sources and avoid guaranteed platform outcomes.
Hidden Radius offers audits, entity and source analysis, crawler reviews, retrieval-ready publishing architecture, measurement frameworks and executive briefings. Commercial engagements do not change the source standards applied to public research.
A research hub connecting NIST, Stanford HAI, OECD, Google, OpenAI, Perplexity, Microsoft, IETF, W3C, Schema.org and original GEO, RAG and REG sources.
Hidden Radius services for discovery-stack audits, entity conflicts, crawler access, retrieval-ready publishing, measurement and executive briefings.
Contact Hidden Radius for search intelligence, discovery-stack audits, entity analysis, crawler reviews, retrieval architecture and executive research.
Privacy and website terms for Hidden Radius, including direct email contact, data minimization, analytics, educational limits and source attribution.