{"pageUrl":"https://promagen.com/how-gemini-evaluates-authority","lastModified":"2026-05-10","provenanceHash":"sha256:b685f8a0f6c5f00515eacc16e045e26f4c011666862ba49fc18a1bf9e8019c54","provenanceNote":"Google-Extended and Googlebot documentation reference Google's published crawler documentation. E-E-A-T framework references Google's Search Quality Rater Guidelines. This page does not claim knowledge of Google's internal Gemini ranking algorithm separate from these published documents.","claims":[{"id":"claim-eeat-canonical-public-framework","statement":"Google's Search Quality Rater Guidelines define E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) as the canonical public framework Google quality raters use to assess sources. It is the most authoritative public guidance on how Google evaluates source quality.","evidenceUrl":"https://developers.google.com/search/docs/fundamentals/creating-helpful-content","lastVerified":"2026-05-10","hash":"sha256:31c75da4a5720596483bc2577e1ad489a852fc01ad904081f7018178c00cc813"},{"id":"claim-google-extended-controls-gemini-apps-vertex","statement":"Google documents Google-Extended as a robots.txt usage-control token (with no HTTP fetcher of its own) that controls whether crawled content may be used for Gemini Apps and Vertex AI Gemini training and grounding. The crawling is performed by Googlebot. Google-Extended is distinct from Googlebot, which controls Google Search indexing.","evidenceUrl":"https://developers.google.com/crawling/docs/crawlers-fetchers/google-common-crawlers","lastVerified":"2026-05-10","hash":"sha256:f51410823634dd7457ec809add3fe6879723006f2a4afa694480927a53e53b83"},{"id":"claim-ai-overviews-not-controlled-by-google-extended","statement":"AI Overviews and AI Mode are features within Google Search. Per Google's AI features in Search documentation, they are controlled via Googlebot crawl access plus preview controls — nosnippet, data-nosnippet, max-snippet, and noindex — not via Google-Extended. Disallowing Google-Extended does not by itself remove a page from AI Overviews / AI Mode.","evidenceUrl":"https://developers.google.com/search/docs/appearance/ai-features","lastVerified":"2026-05-10","hash":"sha256:5663d0a6add150c3afc9fd4f91e3fe2927c6dfc2813cc191e8017f4e339686e6"},{"id":"claim-no-specific-gemini-ranking-published","statement":"Google does not publish a specific Gemini source-ranking algorithm separate from its general Search quality framework. Operationally Gemini shares retrieval infrastructure with Google Search; specific Gemini-only ranking weights are not vendor-documented.","evidenceUrl":"https://promagen.com/sentinel/weekly","lastVerified":"2026-05-10","hash":"sha256:0cd1f7270e399e95b5ce0a2d6f67feff32ea86655531a60c457de8e5b06635d9"}]}