Free JSON-LD Checker — Validate Structured Data
Paste any URL and instantly validate JSON-LD structured data. Detect errors, warnings, and missing fields to ensure rich result eligibility.
3 free checks per month • No credit card required
How the JSON-LD Checker Works
Enter any URL
Paste the website URL you want to check. No signup required.
We parse JSON-LD schemas
Our checker extracts all JSON-LD script blocks and validates them against Schema.org standards.
Review results & fixes
Get a detailed report with errors, warnings, and step-by-step suggestions to fix every issue.
What the JSON-LD Checker Validates
Our checker examines every aspect of your JSON-LD structured data to ensure compliance with Schema.org and Google guidelines.
JSON-LD Validation
Full validation of all JSON-LD structured data on any page, checking syntax, structure, and Schema.org compliance.
Error Detection
Instantly spot invalid JSON syntax, missing required fields, incorrect data types, and broken schema references.
Rich Result Check
Verify whether your structured data qualifies for Google rich results like FAQ carousels, product cards, and event listings.
Schema Types
Supports all major Schema.org types — Article, Product, LocalBusiness, FAQPage, HowTo, Event, Recipe, BreadcrumbList, and more.
Fix Suggestions
Every error includes a clear explanation and actionable fix guidance so you can resolve issues quickly.
Bulk Validation
Check multiple pages across your site to ensure consistent, error-free structured data deployment at scale.
Why Validating Your JSON-LD Matters
JSON-LD has become the preferred format for structured data in modern web development, and search engines like Google explicitly recommend it over Microdata and RDFa. However, having JSON-LD on your page is not enough — if the structured data contains errors or warnings, search engines may ignore it entirely, or worse, report issues in Google Search Console that can affect your site's visibility.
A single missing required property, an incorrect data type, or a malformed JSON syntax can prevent your content from appearing as rich results in search. For e-commerce sites, this could mean losing product star ratings. For publishers, it could mean missing FAQ carousels or article snippets. These rich results directly impact your click-through rates, so ensuring your structured data is error-free is critical for maximizing organic traffic.
Regular JSON-LD validation helps you catch issues early — before they silently degrade your search performance. Websites change frequently: CMS updates, plugin changes, theme modifications, and content additions can all introduce structured data problems that weren't there before. A JSON-LD checker makes it easy to validate your markup across your entire site, ensuring consistency and compliance at scale.
Common JSON-LD Mistakes to Avoid
The most frequent JSON-LD errors include missing required properties like "name" or "url", using incorrect data types, failing to connect related entities with @id references, and nesting objects incorrectly. Many sites also forget to update their structured data when page content changes, leading to stale or inaccurate schemas. Our checker identifies all of these issues and gives you clear instructions to fix each one.
JSON-LD vs Other Schema Formats
While Microdata and RDFa embed structured data directly in HTML attributes, JSON-LD keeps it in a clean, separate script block. This makes it easier to manage, less error-prone, and Google's recommended format. If you're still using Microdata or RDFa, migrating to JSON-LD simplifies maintenance and makes validation straightforward. Our checker works with JSON-LD exclusively, as it's the standard for modern structured data implementation.
Frequently Asked Questions
Ready to Validate Your Structured Data?
Paste your URL above and get a comprehensive JSON-LD validation report in seconds.
View Pricing