PILLAR 4, AUTHORITY NETWORK · 4.1 Structured data validityMediumInferred
Inconsistent vocabularies
What it is
Mixing schema.org with others inconsistently.
Why it matters
Parsing ambiguity.
How to fix it
Standardise on schema.org JSON-LD.
Impact
Low-medium. Inferred.
Evidence
Use supported vocabulary consistently. Google Search Central, Structured data general guidelines