SEO & Content
JSON-LD Visual Schema Validator
Paste any JSON-LD structured data and validate it instantly — syntax errors with position, missing required and recommended fields for Product, Article, LocalBusiness, FAQPage and more, plus a visual expandable tree of your schema. Fix rich-result problems before Google finds them.
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The JSON-LD Visual Schema Validator checks the structured data that powers Google rich results before you publish it. Paste your JSON-LD markup — with or without the script tag wrapper — and the tool verifies that it parses as valid JSON (pointing at the exact line of any syntax error), that it declares a schema.org @context and an @type, and then runs a type-aware checklist of required and recommended properties for the most common types: Organization, LocalBusiness, Product, Article, BlogPosting, FAQPage, BreadcrumbList, Review, Event and WebSite. Documents that bundle several nodes in an @graph array are supported, with each node validated separately, and a collapsible visual tree lets you inspect the whole structure at a glance.
This free tool by Hosting Cambodia is built for developers, SEO specialists and agencies in Phnom Penh, Siem Reap and worldwide who want star ratings, FAQ dropdowns and breadcrumb trails in search results. Everything runs locally in your browser, so unreleased markup never leaves your machine — fix the red errors, consider the amber recommendations, then confirm with Google's Rich Results Test.
Frequently asked questions
What is JSON-LD and why does it matter for SEO?
JSON-LD is the structured-data format Google recommends for describing your content — products, articles, FAQs, businesses — in a machine-readable way. Correct markup makes pages eligible for rich results such as review stars, FAQ accordions and breadcrumbs, which improve visibility and click-through rates.
What is the difference between an error and a warning in the results?
Errors are structural problems or missing required fields that make rich results unlikely, such as a Product without a name or offers. Warnings flag recommended fields that are optional but improve eligibility, like images, authors or aggregate ratings. Fix all errors first, then add as many recommended fields as you can.
Does the validator support multiple schemas on one page?
Yes. You can paste a top-level array of objects or a single document using an @graph array, which is how many WordPress SEO plugins output their markup. Each node is detected and validated against the checklist for its own @type.
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