{"id":1835,"slug":"gap-no-independent-primary-evidence-schema-improves-ai-citation","title":"GAP — no independent or primary evidence that schema markup ITSELF improves AI-answer citation; vendor claims (FAQ schema → 2.8× citations, author schema → 3×) are single-source and unverified","kind":"reference","scope":"business","status":"current","audiences":["kevin","dev","smb-owner","candid-team"],"topics":["ai-citation","editorial-discipline","structured-data-mechanics"],"reference_body":"**Gap:** There is **no independent or primary evidence that schema markup ITSELF improves AI-answer citation.** Google's own documentation says structured data confers rich-result *eligibility*, not ranking ([[google-structured-data-eligibility-not-ranking-correction]]). The peer-reviewed GEO lift came from **body-text edits, not markup** ([[geo-paper-methodology-caveat-body-text-not-schema]]). Vendor claims (\"FAQ schema → 2.8× citations,\" \"author schema → 3×\") are single-source and unverified by primary research.\n\n**Source:** Synthesis as of June 2026 — primary literature search.\n\n**Confidence:** Verified (gap-in-evidence).\n\n**Why this matters for Candid:** Treat schema as \"cheap insurance for eligibility,\" not a proven AI-visibility lever. The case for schema is *defensive* (don't be the only competitor without it), not *offensive* (it won't lift citation by itself).","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"geo-paper-methodology-caveat-body-text-not-schema","title":"GEO paper — critical methodology caveat: the lifts come from BODY-TEXT edits, NOT schema markup; authors explicitly note \"less likely to affect search engine rankings\"","kind":"reference","scope":"business","link_type":"depends-on"},{"slug":"google-structured-data-eligibility-not-ranking-correction","title":"Google documentation — structured data makes pages ELIGIBLE for rich results, NOT a generic ranking boost (\"enables a feature to be present, does not guarantee that it will be present\")","kind":"reference","scope":"business","link_type":"depends-on"}],"incoming":[{"slug":"research-brief-website-as-working-surface-june-2026","title":"Research brief: the website as a working surface of the business — four capabilities, AI-citation decoupling, freshness as a real signal (June 2026)","kind":"reference","scope":"business","link_type":"relates-to"},{"slug":"caveats-working-surface-vendor-self-reporting-and-context-mismatch","title":"Caveats for the working-surface brief: independent anchors (Pew, peer-reviewed GEO paper, Ahrefs large-N) carry the load; vendor figures are range / corroboration, not independent confirmation","kind":"reference","scope":"business","link_type":"relates-to"},{"slug":"rule-schema-is-eligibility-not-ranking-stop-claiming-otherwise","title":"R2 — Schema markup is rich-result ELIGIBILITY, not a ranking boost; stop claiming otherwise in client materials","kind":"rule","scope":"business","link_type":"depends-on"},{"slug":"rule-favor-body-text-citations-stats-over-schema-for-ai-visibility","title":"R3 — Favor body-text citations, quotations and statistics over schema markup as the AI-visibility lever; the peer-reviewed lift is in body text","kind":"rule","scope":"business","link_type":"depends-on"}]},"created_at":"2026-06-21T13:17:17.755Z","updated_at":"2026-06-21T13:17:17.755Z"}