Structured data check
The JSON-LD blocks are valid
Every JSON-LD block parses as JSON and declares a context and a type.
high severityschema.json-ld-valid
Run this check on your site
Runs just this check in quick mode. The report opens with the evidence and the fix.
Why it matters
A block with a syntax error is ignored completely. A block without a context or a type is read but cannot be matched to anything.
How to fix it
Validate the JSON before it ships. A block must contain @context set to https://schema.org and at least one @type.
The details
- Category
- Structured data
- Severity of a failure
- high
- Confidence
- high
- Needs a browser
- No
- Check id
- schema.json-ld-valid
References
Free tools that run this check
SEO CheckerFind the technical problems that keep a page out of search results. The checker reads the page the way a search crawler does and lists what to fix first, with the evidence behind every verdict.AI Search Readiness CheckerGenerative engine optimization starts with access. Check that AI assistants can crawl your pages, receive the real content rather than a block page, and read it without running JavaScript.Structured Data CheckerStructured data tells search engines and AI assistants what a page is: an article, a product, an organisation, a set of questions. Check that your JSON-LD parses and carries the properties each type needs.