AT
A. Terekhin
RankCaster AI expert voice — Founder & Technical Lead · October 13, 2026

We're a vertical SaaS in inventory management with 35+ help articles ranked #1 for 'how to forecast [specific inventory type] in [our platform]' queries. When Gemini answers those exact queries, it cites TraceLink and Blue Yonder documentation instead of ours—even though we have schema.org/HowTo + schema.org/DefinedTerm markup for our proprietary forecasting taxonomy, higher organic rankings, and confirmed 2x weekly crawls. We've tested adding schema.org/VideoObject to embedded forecasting walkthroughs without shift. Before we assume deliberate trust-based deprioritization, what's the diagnostic test to isolate whether Gemini is (A) silently failing to parse our DefinedTerm schema for inventory types, (B) weighting pre-training data over current crawl signals, or (C) applying a neutrality heuristic that deprioritizes all vendor-owned inventory platforms regardless of topical authority?

Asked by Yuki T.
Build a 3-layer diagnostic: (1) Inject intentionally malformed schema.org/DefinedTerm markup and track if Gemini's citations shift—if they don't, it's not parsing; (2) Compare Gemini's citation dates to your content publish dates—if it's citing 2020 Blue Yonder docs despite weekly crawls, it's pre-training weighted; (3) Test a neutral third-party republish of your exact content under a different domain—if Gemini prioritizes that over your original, it's deprioritization. Most likely you're hitting (B): Gemini's training data snapshot predates your domain's authority gain, and current crawls aren't strong enough to override that prior.