# Check Core Web Vitals and Lighthouse scores of web pages

**Use case:** 

Get Lighthouse performance, SEO and accessibility scores plus Core Web Vitals for a list of pages. Each row has the four Lighthouse scores, LCP, FCP, CLS, TBT and page weight. Run it on a schedule with a monitorId to get alerts when a score drops.

## Input

```json
{
  "urls": [
    "https://example.com",
    "https://www.python.org"
  ],
  "strategy": "mobile",
  "maxUrls": 50,
  "concurrency": 2,
  "alertDrop": 5,
  "onlyAlerts": false,
  "includeErrorRows": false,
  "datasetMaxItems": 1000
}
```

## Output

```json
{
  "url": {
    "label": "URL",
    "format": "link"
  },
  "finalUrl": {
    "label": "Final url",
    "format": "link"
  },
  "strategy": {
    "label": "Strategy",
    "format": "text"
  },
  "fetchedAt": {
    "label": "Fetched at",
    "format": "date"
  },
  "performance": {
    "label": "Performance",
    "format": "number"
  },
  "accessibility": {
    "label": "Accessibility",
    "format": "number"
  },
  "bestPractices": {
    "label": "Best practices",
    "format": "number"
  },
  "seo": {
    "label": "Seo",
    "format": "number"
  },
  "lcpMs": {
    "label": "Lcp ms",
    "format": "number"
  },
  "fcpMs": {
    "label": "Fcp ms",
    "format": "number"
  },
  "cls": {
    "label": "Cls",
    "format": "number"
  },
  "tbtMs": {
    "label": "Tbt ms",
    "format": "number"
  }
}
```

## How it works

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

The Lighthouse PageSpeed Checker - Core Web Vitals in Bulk Actor is ready to run with the inputs already set for "Check Core Web Vitals and Lighthouse scores of web pages". [Sign up or log in](https://console.apify.com/create-task-from-example/XmbnzpKudcL8mzRW7) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Check Core Web Vitals and Lighthouse scores of web pages" task

The Lighthouse PageSpeed Checker - Core Web Vitals in Bulk Actor will start running based on the input automatically. You can also change all the input fields, like page urls, strategy, and more, to match your specific use case.

### 3. Receive the "Check Core Web Vitals and Lighthouse scores of web 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 URL, final url, strategy, 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 Core Web Vitals and Lighthouse scores of web pages" task via API](https://apify.com/martin10291/lighthouse-pagespeed-audit.md).

## FAQ

### How much does a run cost?

You pay per result: $0.01 per result on the Free plan (about $10.00 per 1,000). Paid Apify plans get lower tiered prices.

### What can I change in the input?

Edit urls, strategy (mobile or desktop), categories, monitorId and alertDrop.

### Can I run it on a schedule?

Yes. Add this task to an Apify Schedule (for example daily) and read the dataset after each run. This task has no only-new switch, so each run returns the full result for your input.

## About this Actor

This example demonstrates how to use [Lighthouse PageSpeed Checker - Core Web Vitals in Bulk](https://apify.com/martin10291/lighthouse-pagespeed-audit.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/martin10291/lighthouse-pagespeed-audit.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/martin10291/lighthouse-pagespeed-audit.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`).