Free Schema Checker
Check JSON-LD and Schema.org structured data on any webpage. See detected schema types, malformed JSON-LD and common markup observations — no signup required.
What does the Schema Checker inspect?
Notinexa fetches the public HTML returned by the webpage and looks for JSON-LD structured data. It identifies JSON-LD blocks, Schema.org types, nested entities and malformed JSON.
What is JSON-LD?
JSON-LD is a JSON-based format commonly used to publish structured data.
Websites frequently place it inside
<script type="application/ld+json">
elements so machines can understand entities such as organizations,
products, articles, events and breadcrumbs.
Does valid schema guarantee a Google rich result?
No. Valid JSON-LD and sensible Schema.org markup do not guarantee that Google or another search engine will display a rich result. Search engines apply their own supported-type, content and eligibility rules.
What this checker does not do
This checker does not execute page JavaScript and does not claim to reproduce Googlebot or Google's Rich Results Test. Structured data that is injected only after JavaScript execution may therefore not appear.