Schema Markup Validator
Validate and test your JSON-LD structured data. Ensure your schema markup is correct and properly formatted for AI systems and search engines.
Example Schema
Here's an example Organization schema to get you started:
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "Your Company Name",
"url": "https://yourwebsite.com",
"logo": "https://yourwebsite.com/logo.png",
"description": "Your company description",
"address": {
"@type": "PostalAddress",
"streetAddress": "123 Main St",
"addressLocality": "City",
"addressRegion": "State",
"postalCode": "12345",
"addressCountry": "US"
},
"contactPoint": {
"@type": "ContactPoint",
"telephone": "+1-123-456-7890",
"contactType": "customer service",
"email": "contact@yourwebsite.com"
},
"sameAs": [
"https://twitter.com/yourcompany",
"https://linkedin.com/company/yourcompany"
]
}What is Schema Markup?
Schema markup (also known as structured data) is a code format that helps search engines and AI systems understand the content on your website. It uses a standardized vocabulary from Schema.org to describe your business, products, articles, events, and more.
By adding schema markup to your website, you're providing explicit information about your content that search engines and AI assistants can use to display rich results, answer questions accurately, and cite your content in their responses.
JSON-LD (JavaScript Object Notation for Linked Data) is the recommended format for schema markup because it's easy to implement, doesn't interfere with your HTML, and can be placed anywhere in your page's <head> section.
Why Validate Schema Markup?
AI Visibility
Valid schema markup helps AI systems like ChatGPT, Claude, and Perplexity understand and cite your content accurately. When your schema is properly formatted, AI assistants can extract key information about your business, products, or services and include it in their responses.
Search Engine Optimization
Properly structured data can help your content appear in rich results, featured snippets, knowledge panels, and other enhanced search features. This can significantly improve your click-through rates and visibility in search results.
Error Prevention
Catch errors before deploying to your website. Invalid schema can hurt your visibility and rankings. Common issues include missing required properties, incorrect data types, malformed URLs, and syntax errors that prevent search engines from parsing your structured data.
Best Practices
Get recommendations on required and recommended fields based on Schema.org standards. Our validator checks your schema against best practices and suggests improvements to maximize your visibility potential.
How Our Schema Validator Works
Paste Your Schema
Simply paste your JSON-LD schema markup into the validator. You can copy it directly from your website's source code or create it from scratch.
Instant Validation
Our validator checks your schema for JSON syntax errors, missing required properties, incorrect data types, invalid URLs, and Schema.org compliance issues. Results appear instantly with detailed error and warning messages.
Get Formatted Output
Once validated, you can copy or download your properly formatted schema. The validator automatically formats your JSON with proper indentation for easy reading and implementation.
Deploy with Confidence
Fix any errors or warnings, then deploy your validated schema to your website. You can be confident that search engines and AI systems will be able to parse and understand your structured data correctly.
Supported Schema Types
Our validator supports all Schema.org types. Here are some of the most commonly used:
Organization
Business or company information
LocalBusiness
Local business with location details
Product
Product information and pricing
Article
Blog posts and news articles
WebSite
Website search functionality
Person
Individual person information
Event
Events and conferences
Recipe
Cooking recipes
Review
Product and service reviews
FAQPage
Frequently asked questions
BreadcrumbList
Website navigation breadcrumbs
VideoObject
Video content metadata
And many more! Our validator works with any Schema.org type and provides type-specific validation rules.
Frequently Asked Questions
What is JSON-LD schema markup?
JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding structured data using JSON. It's the recommended format for schema markup because it can be placed in the <head> section of your HTML without affecting the visual appearance of your page.
Do I need to sign up to use this validator?
No! This is a completely free tool with no signup required. You can validate unlimited schemas without creating an account. Simply paste your schema and click validate.
What types of errors does the validator check for?
Our validator checks for JSON syntax errors, missing required properties (like @context and @type), invalid URL formats, incorrect data types, missing recommended fields for specific schema types, and Schema.org compliance issues. It also provides warnings for best practices.
Can I validate multiple schemas at once?
Currently, the validator processes one schema at a time. If you have multiple schemas on a page, validate them separately. Each schema should be a complete, valid JSON-LD object with its own @context and @type.
Where should I place schema markup on my website?
JSON-LD schema markup should be placed in the <head> section of your HTML, ideally near the top. You can include multiple schema blocks on a single page if needed (e.g., Organization + WebSite schemas).
Will this validator check my schema against Google's requirements?
Our validator checks for Schema.org compliance and common best practices. For Google-specific validation, we recommend also using Google's Rich Results Test tool. Both validators serve different purposes and complement each other.
What's the difference between errors and warnings?
Errors are critical issues that will prevent your schema from being parsed correctly (e.g., missing @context, invalid JSON syntax). Warnings are recommendations for improvement (e.g., missing recommended properties, non-standard @context values). Fix errors first, then address warnings for optimal results.
Is my schema data stored or saved?
No. All validation happens entirely in your browser. We don't store, save, or transmit your schema data to our servers. Your data remains completely private and secure.
Can I use this validator for Microdata or RDFa formats?
This validator is specifically designed for JSON-LD format. For Microdata or RDFa validation, you'll need different tools. However, we recommend using JSON-LD as it's the easiest to implement and maintain, and it's the format preferred by Google and other major search engines.
How often should I validate my schema markup?
Validate your schema whenever you create new markup, update existing schema, or make changes to your website structure. It's also a good practice to validate periodically to ensure your schema remains valid after website updates or migrations.
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