Breadcrumb schema provides AI systems with a clear, structured map of how your content is organized.
It signals:
AI models use BreadcrumbList to reconstruct the information architecture behind your surface pages.
Proper breadcrumb schema increases interpretability by showing AI systems:
Breadcrumb schema is especially important in the AI-search era because large models cannot rely on crawling links alone.
Schema offers a clean, declarative hierarchy that reduces ambiguity and strengthens the institution’s structural coherence.
‍
Use JSON-LD BreadcrumbList, not RDFa or Microdata.
Ensure every breadcrumb item has:
@type: ListItemposition (starting at 1)nameitem (URL)Breadcrumb schema is one of the highest-impact structural clarity signals — it teaches AI how your entire site fits together.
‍
Breadcrumb schema missing entirely
AI cannot infer page hierarchy reliably.
BreadcrumbList values out of order
Incorrect position numbers or reversed order break structural clarity.
URL mismatches
Breadcrumb item URLs don’t match the live canonical URL.
Multiple conflicting BreadcrumbList schemas
(e.g., CMS auto-inserts one, and a plugin injects a second one)
Breadcrumbs that don’t match on-page navigation
Creates interpretive contradictions for AI systems.
Using Microdata instead of JSON-LD
Makes parsing inconsistent or less reliable.
Breadcrumbs that skip levels
AI loses the full category chain.