FREE TOOL · DETERMINISTIC · ONE FETCH

Validate structured data before Google does.

Fetch a public page, inspect its JSON-LD blocks, and get honest per-block verdicts without triggering the full TrustGrowth audit pipeline.

No account. One bounded check — never the full crawl or a site-wide score.

WHAT YOU GET

ILLUSTRATIVE

2 JSON-LD blocks found — 1 with missing required fields

Block 1 · Organization

Parsed

Block 2 · Article — missing author, datePublished

Incomplete

What this check actually measures

Structured data is the page's machine-readable self-description: JSON-LD blocks that tell crawlers what kind of thing the page is — an article, a product, an organization, a FAQ — and which facts about it are load-bearing. This check fetches one public page, parses every JSON-LD block deterministically, and reports what parsed, what didn't, and which required properties are absent for the schema types you declared. It also notes whether basic microdata is present.

The failure modes, and what each one means

A block that doesn't parse: One stray comma or an unclosed brace and the whole block is invisible — crawlers don't repair JSON. Fix: validate the emitted JSON, not the template that generates it; the bug is usually in an interpolated value.
A declared type missing required properties: An Article without an author or date, a Product without an offer — the type is announced but underfed, and rich-result eligibility quietly lapses. Fix: fill the named properties from data you already render on the page; if the page doesn't show it, the schema shouldn't claim it.
No structured data at all: The page still ranks — schema is not a ranking factor by itself — but every consumer of the page, search or AI, is left to infer what a template could have stated. Fix: start with Organization on the homepage and the type that matches your core page kind.

Why it matters for search — and for AI answers

For search, valid structured data is what makes a page eligible for rich results, and eligibility is binary: a parse failure isn't penalized, it's ignored. For AI answer engines the stakes are quieter but broader — schema is the highest-signal-to-noise text on the page, and models that read your site learn entity facts (who you are, what you sell, who wrote this) from it first. A page that states its facts in schema is a page an answer engine can cite without guessing.

What the full product adds

This tool checks one page, once. The TrustGrowth audit runs schema checks across your crawled pages on a schedule, files every finding against the pages it affects, tracks how long each has been open, and folds the signal into a score you can watch move — with the evidence kept.

Convinced? It takes one URL.

TRY ANOTHER CHECK

Build JSON-LD → Build sameAs JSON-LD → Preview my listing → Inspect my canonical → Check crawler access → Create my llms.txt → Create llms.txt from sitemap → Compose my robots.txt → See the AI read → Check trust signals → Ask three engines → Convert this page → Grade my llms.txt →

Browse all free tools The full version lives in Audit & Scoring →

Frequently asked questions

What does the schema check look at?

One public page, one fetch. It finds the JSON-LD blocks on that page, parses them deterministically, and gives a verdict per block: missing required properties for common schema types, parse failures that break rich-result eligibility, and whether basic microdata is present.

Does it check my whole site?

No — the URL you give it, and nothing else. It follows no links and crawls no further. That bound is why it can run instantly and without an account.

If my schema is valid, will I get rich results?

No tool can tell you that, and this one does not try. Valid structured data makes a page eligible; whether Google shows a rich result is Google's decision. What this reports is what your page is actually publishing right now.

Which schema types does it know?

The common ones a marketing or content site ships — Article, BlogPosting, FAQPage, HowTo, Product, Organization, Person, Review, SoftwareApplication, WebSite, BreadcrumbList, Event, Recipe, VideoObject, JobPosting, Course, NewsArticle, QAPage, LocalBusiness, Service and WebPage. Blocks of other types are still parsed and reported; they just are not checked against a required-field list.

Do I need an account?

No. Run it on any public URL. The result gets a shareable link and is cached for about six hours, so re-opening it does not re-run the check.

How is this different from the full TrustGrowth audit?

The audit runs schema checks across your crawled page inventory instead of one URL, files each finding with the pages it affects and how long it has been open, and feeds the result into GEO readiness and your score. This tool is one page, one moment, no history.