$ zelthra --schema-check

Free Schema Markup Validator

Check whether your structured data (JSON-LD) is valid and complete — the markup that helps Google show rich results like star ratings, FAQs, and business details.

Free · No signup required · Results in seconds

zelthra.com/schema-validator
Live Validate
7 Schema Types JSON-LD Validated
$ zelthra --syntax JSON-LD Syntax
$ zelthra --org Organization Schema
$ zelthra --business LocalBusiness Schema
$ zelthra --product Product Schema
$ zelthra --article Article Schema
$ zelthra --faq FAQPage Schema
What It Checks

The Schema Types That Matter Most

We validate the JSON-LD structured data types businesses use most often for rich search results.

Valid JSON Syntax

A single misplaced comma can silently break your schema — we check that every block actually parses.

Required Fields

Organization, LocalBusiness, Product, Article, FAQPage, BreadcrumbList, and WebSite schema — checked against Google's required properties.

Recommended Fields

Fields that aren't strictly required but improve your odds of qualifying for rich results.

FAQ

Frequently Asked Questions

Yes. There's no signup, no email required, and no limit on how many pages you can check.

Structured data (usually written as JSON-LD) is code added to a page that describes its content in a format search engines understand — helping you qualify for rich results like star ratings, FAQs, and business info panels.

Organization, LocalBusiness, Product, Article/BlogPosting, FAQPage, BreadcrumbList, and WebSite. Other types are still detected and shown, just without a field-by-field validation profile yet.

Google requires certain properties for a schema type to be eligible for rich results — for example, a Product needs a name at minimum. If a required field is missing, search engines may ignore that schema block entirely.

No. Valid schema makes you eligible, but Google decides whether and how to display rich results based on many factors. Fixing validation errors removes a common reason schema gets ignored.

No. We fetch the page, read its structured data, and don't save the URL or results anywhere.

$ zelthra --start

Want Rich Results in Google Search?

From Organization schema to FAQ rich results, we implement and validate structured data that helps your pages stand out in search.

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