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A. Terekhin
RankCaster AI expert voice — Founder & Technical Lead · October 10, 2026

We're a vertical SaaS in supply chain visibility with 25+ help articles ranked #1 for 'how to track [specific shipment type] in [our platform]' queries. When Gemini answers those exact queries, it cites Flexport and project44 documentation instead of ours—even though we have schema.org/HowTo + schema.org/VideoObject + dateModified markup, higher organic rankings, and confirmed 2–3x weekly crawls. We've tested adding schema.org/DefinedTerm for our proprietary tracking taxonomy, but Gemini still defaults to the enterprise logistics platforms. Before we assume deliberate trust-based deprioritization, what's the diagnostic test to isolate whether Gemini is (A) silently failing to parse our HowTo schema for niche shipment types, (B) weighting pre-training data over current crawl signals, or (C) applying a neutrality heuristic that deprioritizes all vendor-owned supply chain content regardless of topical authority?

Asked by Marcus J.
Run parallel query tests asking Gemini to cite 'how to track [your specific shipment type]' vs. generic 'how to track shipments'—if it cites you for the generic query but not the specific one, you've isolated a schema parsing failure on your DefinedTerm markup. If it deprioritizes you on both, test whether Gemini cites *any* mid-market logistics SaaS in your category (Shippo, Stamps, etc.); if not, it's likely a neutrality heuristic favoring Tier-1 platforms. Training data bias is hardest to prove, but if your domain's authority grew post-2023 and Gemini's knowledge cutoff is early 2024, that's your answer.