JSON-LD Validator
Validate the syntax and semantics of JSON-LD structured data markup online quickly, securely, and privately.
JSON-LD or HTML Code
Provide your structured data via code or extract them from an active URL.
Guaranteed Privacy (Privacy First)
To bypass CORS blockages, fetching from a URL is handled through a transient, stateless route. No data is saved or persisted on our servers.
Awaiting Validation
Paste a JSON-LD markup or enter a URL in the panel above and click **Validate Markup** to view the results.
About the JSON-LD Validator
The JSON-LD Validator is an essential tool for developers, SEO professionals, and QA engineers. It allows for the analysis of structured data markup in JSON-LD format, which is highly recommended by search engines like Google to enable Rich Results (such as review stars, expanded FAQs, and sitelinks searchboxes on SERPs).
Our tool performs a dual-layer check: first, it validates whether the JSON syntax is perfectly correct (helping identify stray commas, missing curly braces, or incorrect quotes with exact line-and-column codeFrame reports). Second, it inspects key semantic elements of Schema.org to ensure that your markup can be indexed successfully.
Best Practices for JSON-LD Structured Data
To ensure Google perfectly understands and validates your structured data, make sure to follow the universal standards described below:
- Tag Placement: The JSON-LD script can be placed anywhere in the HTML code (inside the <head> or the <body>). Google indexing operates perfectly in both cases.
- HTTPS Usage: Ensure that the @context declaration uses https://schema.org to meet modern security standards.
- Connected Data: Link different markups by declaring unique IDs (@id) to help build explicit semantic relationships between objects.