# Structured Data Validator (JSON-LD, Schema.org, Open Graph) (`os_digital/structured-data-validator`) Actor

Validate JSON-LD / Schema.org structured data and SEO meta tags in bulk: missing required fields, bad dates and prices, rich result eligibility, Open Graph and canonical checks.

- **URL**: https://apify.com/os_digital/structured-data-validator.md
- **Developed by:** [Ofir Shudari](https://apify.com/os_digital) (community)
- **Categories:** SEO tools, Developer tools
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

$8.00 / 1,000 page validateds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## Structured Data Validator (JSON-LD, Schema.org, Open Graph)

Check the structured data and SEO meta tags of any page or whole site, in bulk, without a browser. For each page you get a score, the Schema.org types found, which Google rich result types the page is eligible for, and a precise list of problems.

Built for SEO agencies, e-commerce teams, publishers and developers who need to find broken markup before Google does.

### What it checks

- JSON-LD blocks: valid JSON, `@context`, `@graph` and arrays, every `@type`
- Required and recommended properties for Product, Offer, AggregateRating, Review, Article / BlogPosting / NewsArticle, FAQPage, Question, BreadcrumbList, LocalBusiness (and subtypes), Organization, Person, WebSite, Event, JobPosting, Recipe, VideoObject, SoftwareApplication, Course and more
- Dates must be ISO 8601, prices must be plain numbers, URLs should be absolute
- Title and meta description length, canonical, `noindex`, `lang`, hreflang
- Open Graph (`og:title`, `og:type`, `og:image`...) and Twitter card
- Microdata and RDFa item counts

### Output per page

`score`, `types`, `richResultsEligible`, `errors`, `warnings`, `issues[]` (severity, type, JSON-LD block, property path, message), and a `meta` object with title, description, canonical, Open Graph and Twitter values.

### Input

- **URLs**: pages or sites
- **Pages per site from sitemap**: also validates URLs from `/sitemap.xml`
- **Only pages with issues**: skips clean pages (not charged)

### Notes and limits

- The Actor reads the HTML as served. Structured data that is only injected by JavaScript after load is not seen.
- Rules follow Google's published structured data guidelines as understood at build time and Schema.org vocabulary; Google may change requirements. Eligibility means the required properties are present, not that Google will show a rich result.

# Actor input Schema

## `urls` (type: `array`):

Pages to validate. Domain names without https:// also work.

## `pagesFromSitemap` (type: `integer`):

1 validates only the given URL. Higher values also validate URLs found in the site's /sitemap.xml (up to this many in total).

## `onlyPagesWithIssues` (type: `boolean`):

Skip (and do not charge for) pages that have no errors or warnings.

## Actor input object example

```json
{
  "urls": [
    "https://example.com"
  ],
  "pagesFromSitemap": 1,
  "onlyPagesWithIssues": false
}
```

# Actor output Schema

## `overview` (type: `string`):

Score, types, rich result eligibility and issue counts per page.

## `results` (type: `string`):

Every issue with severity, schema type, JSON-LD block, property path and message, plus all SEO meta.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "urls": [
        "https://example.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("os_digital/structured-data-validator").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "urls": ["https://example.com"] }

# Run the Actor and wait for it to finish
run = client.actor("os_digital/structured-data-validator").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "urls": [
    "https://example.com"
  ]
}' |
apify call os_digital/structured-data-validator --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,os_digital/structured-data-validator"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/dChNRBcFlHozhgeXG/builds/vzNS3FvlGbOBnG5lg/openapi.json