Live deterministic tool
Schema Markup Checker
Parse JSON-LD structured data and report detected schema types and JSON errors.
What this checks
JSON-LD count
Schema types
Parse errors
Recommended baseline types
FAQ
Does it validate every schema rule?
It performs deterministic JSON-LD parsing and type checks. A full audit can add richer search-result recommendations.
Which formats are checked?
This free tool checks JSON-LD script blocks.