PILLAR 4, AUTHORITY NETWORK · 4.1 Structured data validityHighVerified
Markup for invisible content
What it is
Structured data describes content not on the page.
Why it matters
Violates structured-data policy; risks manual action.
How to fix it
Only mark up visible content.
Impact
Medium-high; penalty risk. Direct.
Evidence
Mark up only visible, relevant content. Google Search Central, Structured data general guidelines