---
title: Schema.org JSON-LD Validator
emoji: ✅
colorFrom: green
colorTo: blue
sdk: gradio
sdk_version: 6.14.0
python_version: '3.13'
app_file: app.py
pinned: false
license: mit
short_description: Validate Schema.org JSON-LD from a URL or paste
tags:
  - seo
  - schema-org
  - jsonld
  - structured-data
  - validator
---

# Schema.org JSON-LD Validator

Validate a Schema.org JSON-LD block — paste it directly, or give a URL and we'll fetch all `<script type="application/ld+json">` blocks from the page and check each.

## Best-practice checks

- JSON parses
- `@context` is `schema.org`
- Every node has `@type` and `@id`
- `Organization` has ≥ 3 `sameAs` entries
- `Person` has at least one `identifier` (ORCID / Wikidata / Google KG MID)

## Companion tools

- [aio-surfaces](https://github.com/Janady13/aio-surfaces) — the toolkit that generates the Schema.org @graph from a typed site config
- [llms.txt generator](https://huggingface.co/spaces/Janady07/llms-txt-generator) — drafts a spec-compliant llms.txt from any URL

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