# Check missing BreadcrumbList JSON-LD on product pages

**Use case:** 

Compare two synthetic public HTML pages, one containing BreadcrumbList metadata and the other without it. Export missing breadcrumb structured-data findings. Static HTML only; no full navigation audit.

## Input

```json
{
  "urls": [
    "https://api.apify.com/v2/key-value-stores/DHMHtotPcN9CAKXYj/records/breadcrumb-valid-20261021.html",
    "https://api.apify.com/v2/key-value-stores/DHMHtotPcN9CAKXYj/records/breadcrumb-absent-20261021.html"
  ]
}
```

## Output

```json
{
  "sourceUrl": {
    "label": "Input URL",
    "format": "string"
  },
  "finalUrl": {
    "label": "Final URL",
    "format": "string"
  },
  "mode": {
    "label": "Audit mode",
    "format": "string"
  },
  "issueCount": {
    "label": "Issue count",
    "format": "integer"
  },
  "status": {
    "label": "Status",
    "format": "string"
  },
  "checkedAt": {
    "label": "Timestamp",
    "format": "string"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The PAL Breadcrumb Schema Audit Actor is ready to run with the inputs already set for "Check missing BreadcrumbList JSON-LD on product pages". [Sign up or log in](https://console.apify.com/create-task-from-example/EQPRFHmw2zavK8i7W) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Check missing BreadcrumbList JSON-LD on product pages" task

The PAL Breadcrumb Schema Audit Actor will start running based on the input automatically. You can also change all the input fields, like public https page urls, to match your specific use case.

### 3. Receive the "Check missing BreadcrumbList JSON-LD on product pages" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as input url, final url, audit mode, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Check missing BreadcrumbList JSON-LD on product pages" task via API](https://apify.com/practical_ai_lab_jp/pal-breadcrumb-schema-checker.md).

## About this Actor

This example demonstrates how to use [PAL Breadcrumb Schema Audit](https://apify.com/practical_ai_lab_jp/pal-breadcrumb-schema-checker.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/practical_ai_lab_jp/pal-breadcrumb-schema-checker.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

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 full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/practical_ai_lab_jp/pal-breadcrumb-schema-checker.md

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`).