---
title: "Schema Markup Validator · JSON-LD & Microdata · Nuxt SEO"
description: "Check Schema.org markup from a URL or pasted JSON-LD. Find syntax errors and missing properties. Free, no sign-up."
canonical_url: "https://nuxtseo.com/tools/schema-validator"
meta:
  "og:description": "Check Schema.org markup from a URL or pasted JSON-LD. Find syntax errors and missing properties. Free, no sign-up."
  "og:image": "https://cdn.nuxtseo.com/f63e26e4daf4f4b25b0181313fb6e7196dfc7be3a3d9b46bdc1d8347373f915b.png"
  "og:image:height": "600"
  "og:image:type": image/png
  "og:image:width": "1200"
  "og:title": "Schema Markup Validator · JSON-LD & Microdata · Nuxt SEO"
  "twitter:image": "https://cdn.nuxtseo.com/f63e26e4daf4f4b25b0181313fb6e7196dfc7be3a3d9b46bdc1d8347373f915b.png"
---

> Index of every page on this site: [llms.txt](https://nuxtseo.com/llms.txt)

$ nuxt-seo tools

# Schema Markup Validator

Inspect JSON-LD and Microdata, then flag missing properties commonly required for Google rich results.

Try:

**Was this tool helpful? **

Your feedback helps us improve

## What this validator checks

This checker reads Schema.org markup from a public URL or pasted JSON-LD. It reports syntax errors and missing common properties.

- **Markup found:** pasted JSON-LD, or JSON-LD and Microdata in fetched HTML
- **Issues found:** Parse errors and missing common properties
- **Before publishing:** Confirm eligibility with Google's Rich Results Test

## Which check should you use?

- **This validator:** a quick review of your page markup or pasted JSON-LD.
- **Google Rich Results Test:** the final check for Google search feature eligibility.
- **Schema.org Validator:** broader vocabulary and syntax debugging.

## Common schema problems

- **Missing `@type`:** name the Schema.org type for every node.
- **Missing properties:** open the affected node to see which fields this checker expected.
- **Invalid dates:** use an ISO 8601 date or full timestamp.
- **Relative URLs:** use complete URLs for fields such as `url`, `image`, and `sameAs`.

## Using Schema.org with Nuxt

The Nuxt Schema.org module builds JSON-LD from typed helpers:

```
<script setup>
// npm install @nuxtjs/schema-org
useSchemaOrg([
  defineArticle({
    headline: 'My Article Title',
    author: 'John Doe',
    datePublished: new Date('2024-01-15'),
    image: '/og-image.jpg'
  })
])
  </script>
```

[Read the Nuxt Schema.org guide →](https://nuxtseo.com/docs/schema-org/getting-started/introduction)

## Common questions

<details>

<summary>What is a schema markup validator?</summary>



A schema markup validator extracts structured data from a page and reports syntax or property issues. This checker reads JSON-LD and Microdata, then compares recognized types with common rich-result requirements.

</details>

<details>

<summary>How do I test my schema markup?</summary>



Enter a page URL or paste JSON-LD, then choose Check schema. Review errors and missing properties. Confirm Google eligibility with the Rich Results Test before shipping.

</details>

<details>

<summary>What's the difference between this and Google's Rich Results Test?</summary>



Google's Rich Results Test is the authority for Google eligibility. This checker extracts Schema.org markup and reports property coverage for the rich-result types it recognizes. Use Google's test before relying on a production result.

</details>

<details>

<summary>What is the difference between Schema.org and JSON Schema?</summary>



Schema.org describes the meaning of web content such as products, articles, and events. JSON Schema validates the structure of JSON data. They solve different problems.

</details>

<details>

<summary>What is structured data and why does it matter?</summary>



Structured data labels entities and properties in a machine-readable format. Supported Schema.org markup can make a page eligible for rich search features, but it does not guarantee that a rich result will appear.

</details>

<details>

<summary>Which schema types support rich results?</summary>



Google supports a changing subset of Schema.org types, each with its own required and recommended properties. Check Google Search Central's current structured data gallery for the supported features and requirements.

</details>

Checked one page. Nuxt SEO Pro tracks structured-data changes and reported issues across your site.

[**Monitor in Pro **](https://nuxtseo.com/pro)

Part of [**Nuxt SEO **](https://nuxtseo.com/). One install covers sitemaps, robots.txt, meta tags, Schema.org, and OG images.

[**Nuxt and Vue SEO checklist ** Schema valid? Check the full SEO checklist to make sure nothing else is missed.](https://nuxtseo.com/learn-seo/checklist)

### **References**

[**Schema.org Documentation** Official getting started guide for implementing structured data.](https://schema.org/docs/gs.html) [**Google Structured Data** Google's guide to structured data for rich results.](https://developers.google.com/search/docs/appearance/structured-data) [**Rich Results Test** Google's tool for testing structured data and preview rich results.](https://search.google.com/test/rich-results) [**Schema.org Types** Complete reference of all available Schema.org types and properties.](https://schema.org/docs/full.html)

### **Related**

[Schema.org Module](https://nuxtseo.com/docs/schema-org/getting-started/introduction) [Structured Data Guide](https://nuxtseo.com/learn-seo/nuxt/mastering-meta/schema-org) [Meta Tag Checker](https://nuxtseo.com/tools/meta-tag-checker) [Nuxt SEO Docs](https://nuxtseo.com/docs/nuxt-seo/getting-started/introduction) [Schema Types Guide](https://nuxtseo.com/docs/schema-org/guides/nodes)

```json
{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is a schema markup validator?","acceptedAnswer":{"@type":"Answer","text":"A schema markup validator extracts structured data from a page and reports syntax or property issues. This checker reads JSON-LD and Microdata, then compares recognized types with common rich-result requirements."}},{"@type":"Question","name":"How do I test my schema markup?","acceptedAnswer":{"@type":"Answer","text":"Enter a page URL or paste JSON-LD, then choose Check schema. Review errors and missing properties. Confirm Google eligibility with the Rich Results Test before shipping."}},{"@type":"Question","name":"What's the difference between this and Google's Rich Results Test?","acceptedAnswer":{"@type":"Answer","text":"Google's Rich Results Test is the authority for Google eligibility. This checker extracts Schema.org markup and reports property coverage for the rich-result types it recognizes. Use Google's test before relying on a production result."}},{"@type":"Question","name":"What is the difference between Schema.org and JSON Schema?","acceptedAnswer":{"@type":"Answer","text":"Schema.org describes the meaning of web content such as products, articles, and events. JSON Schema validates the structure of JSON data. They solve different problems."}},{"@type":"Question","name":"What is structured data and why does it matter?","acceptedAnswer":{"@type":"Answer","text":"Structured data labels entities and properties in a machine-readable format. Supported Schema.org markup can make a page eligible for rich search features, but it does not guarantee that a rich result will appear."}},{"@type":"Question","name":"Which schema types support rich results?","acceptedAnswer":{"@type":"Answer","text":"Google supports a changing subset of Schema.org types, each with its own required and recommended properties. Check Google Search Central's current structured data gallery for the supported features and requirements."}}]}
```

```json
{"@context":"https://schema.org","@graph":[{"@id":"https://nuxtseo.com/#website","@type":"WebSite","description":"Nuxt SEO is a collection of hand-crafted Nuxt Modules to help you rank higher in search engines.","name":"Nuxt SEO","url":"https://nuxtseo.com/","publisher":{"@id":"https://nuxtseo.com/#identity"}},{"@id":"https://nuxtseo.com/tools/schema-validator#webpage","@type":"WebPage","description":"Check Schema.org markup from a URL or pasted JSON-LD. Find syntax errors and missing properties. Free, no sign-up.","name":"Schema Markup Validator · JSON-LD & Microdata","url":"https://nuxtseo.com/tools/schema-validator","isPartOf":{"@id":"https://nuxtseo.com/#website"},"potentialAction":[{"@type":"ReadAction","target":["https://nuxtseo.com/tools/schema-validator"]}],"primaryImageOfPage":{"@id":"https://nuxtseo.com/#logo"}},{"@id":"https://nuxtseo.com/#identity","@type":"Organization","name":"Nuxt SEO","url":"https://nuxtseo.com","logo":{"@id":"https://nuxtseo.com/#logo"}},{"@id":"https://nuxtseo.com/tools/schema-validator#/schema/software-application/1","@type":"SoftwareApplication","applicationCategory":"DeveloperApplication","description":"Check Schema.org markup from a URL or pasted JSON-LD. Find syntax errors and missing properties. Free, no sign-up.","name":"Schema Markup Validator · JSON-LD & Microdata","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}},{"@id":"https://nuxtseo.com/#logo","@type":"ImageObject","caption":"Nuxt SEO","contentUrl":"https://nuxtseo.com/logo.png","inLanguage":"en","url":"https://nuxtseo.com/logo.png"}]}
```

## Sitemap

See the full [sitemap](https://nuxtseo.com/sitemap.md) for all pages.