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Agent LighthouseAgent Lighthouse

    Searches the text of every published page. The evidence sources themselves are not in this index — search all of them on the trusted sources page.

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    answer-readiness/unique-data

    Statistics in research context

    What it checks

    Reports numeric figures in visible paragraphs with an English research or measurement cue: survey, study, research, benchmark and their plural or agent forms (surveys, studies, researchers, benchmarks), respondents, participants, sampled or measured. Prices are removed before matching. Percentages, grouped thousands and selected population/measurement units can then count. Site-level navigation, header and footer regions, asides and their equivalent ARIA landmarks do not contribute. An observed contextual figure yields an informative pass; absence returns NA.

    Why it matters

    These observations can help a human inspect supporting material. They do not establish a site-wide obligation or predict AI citation quality.

    Evidence

    Grade C for the implemented detector. The GEO paper studied adding relevant statistics and credible citations in a fixed experimental context (verified 2026-10-21). It did not validate arbitrary link or number counts as a site-quality measure. The old grade B described the study intervention; the current detector does not reproduce that intervention. The previous numeric threshold therefore cannot govern scoring.

    Limits

    This lexical heuristic does not prove originality, truth, sampling quality or causal relevance. Figures followed by offer words such as “satisfaction”, “guaranteed”, “off” or “cotton” are dropped, so “100% satisfaction guaranteed, backed by research” does not match. Other marketing phrasing can still match; a pass reports the lexical observation, not verified research. It misses other languages and statistics outside paragraphs. Currency exclusion covers dollar, euro and pound forms. The check has no minimum figure count, and never asks a site to invent statistics.

    How it scores

    This check carries weight 0 and informative display. Pass means an observation exists, not that the site meets a proven quality threshold. No observation returns not applicable. It emits no fail or warning for absent sources or statistics.

    Sources