1. Input
Choose a supported type and enter facts visible on the page.
2. Read the result
Generate valid JSON-LD or validate pasted JSON syntax and core fields.
3. Take action
Add it once, then test the live rendered page with an official validator.
Scope
Build focused JSON-LD or validate pasted structured data without adding properties that are not supported by visible content.
Important limit
Validation checks syntax and core fields. Google eligibility also depends on visible content, type-specific policies and the live rendered page.