# Check generated HTML before website deployment

**Use case:** 

Check one generated HTML snapshot before deployment. Replace the sample HTML with your own page; the preset maximum charge is $0.01005 at current rates. Get JSON findings with source-line evidence for metadata and JSON-LD syntax. URLs are labels, never fetched. The sample intentionally contains a JSON-LD trailing comma.

## Input

```json
{
  "pages": [
    {
      "id": "landing",
      "url": "https://example.com/landing",
      "html": "<!doctype html>\n<html lang=\"en\"><head>\n<title>Landing page</title>\n<meta name=\"description\" content=\"A generated landing page snapshot.\">\n<link rel=\"canonical\" href=\"https://example.com/landing\">\n<script type=\"application/ld+json\">{\"@type\":\"Organization\",}</script>\n</head><body><h1>Landing page</h1></body></html>"
    }
  ]
}
```

## Output

```json
{
  "id": {
    "label": "Page ID",
    "format": "text"
  },
  "url": {
    "label": "Supplied URL",
    "format": "link"
  },
  "summary.error": {
    "label": "Errors",
    "format": "number"
  },
  "summary.warning": {
    "label": "Warnings",
    "format": "number"
  },
  "summary.info": {
    "label": "Information",
    "format": "number"
  },
  "facts.title": {
    "label": "Document title",
    "format": "text"
  }
}
```

## How it works

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

The HTML SEO & JSON-LD Syntax Checker — PageProof Actor is ready to run with the inputs already set for "Check generated HTML before website deployment". [Sign up or log in](https://console.apify.com/create-task-from-example/xChAggPeo9d47wSRm) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Check generated HTML before website deployment" task

The HTML SEO & JSON-LD Syntax Checker — PageProof Actor will start running based on the input automatically. You can also change all the input fields, like HTML pages to inspect, to match your specific use case.

### 3. Receive the "Check generated HTML before website deployment" 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 page id, supplied url, errors, 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 generated HTML before website deployment" task via API](https://apify.com/coolish_indium/pageproof-preflight.md).

## About this Actor

This example demonstrates how to use [HTML SEO & JSON-LD Syntax Checker — PageProof](https://apify.com/coolish_indium/pageproof-preflight.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/coolish_indium/pageproof-preflight.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/coolish_indium/pageproof-preflight.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`).