# Core Web Vitals bulk check (LCP, INP, CLS) for a list of URLs

**Use case:** 

Check Core Web Vitals for many pages at once with the official Google PageSpeed Insights API: real-user LCP, INP and CLS (CrUX p75) with a PASSED/FAILED verdict, plus lab LCP, CLS, TBT and the Lighthouse performance score for mobile and desktop. Add your free Google API key to get PageSpeed data; without it you get the on-page SEO audit only. Capped at 10 URLs per run ($0.005 per audited URL).

## Input

```json
{
  "urls": [
    "https://www.wikipedia.org/",
    "https://www.python.org/",
    "https://developer.mozilla.org/en-US/"
  ],
  "sitemapUrl": "",
  "maxUrls": 10,
  "pageSpeed": "auto",
  "lighthouseCategories": [
    "performance"
  ],
  "includeOpportunities": true,
  "maxConcurrency": 3,
  "requestDelayMs": 1000,
  "pageTimeoutSecs": 30,
  "respectRobotsTxt": true,
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}
```

## Output

```json
{
  "url": {
    "label": "URL",
    "format": "string"
  },
  "status": {
    "label": "Status",
    "format": "string"
  },
  "charged": {
    "label": "Charged",
    "format": "boolean"
  },
  "statusCode": {
    "label": "HTTP",
    "format": "integer"
  },
  "seoScore": {
    "label": "SEO score",
    "format": "integer"
  },
  "issueCount": {
    "label": "Issues",
    "format": "integer"
  },
  "mobilePerformanceScore": {
    "label": "Mobile perf",
    "format": "integer"
  },
  "desktopPerformanceScore": {
    "label": "Desktop perf",
    "format": "integer"
  },
  "mobileLcpMs": {
    "label": "Mobile LCP (ms)",
    "format": "number"
  },
  "mobileCls": {
    "label": "Mobile CLS",
    "format": "number"
  },
  "mobileCoreWebVitals": {
    "label": "CWV (mobile)",
    "format": "string"
  },
  "title": {
    "label": "Title",
    "format": "string"
  },
  "titleLength": {
    "label": "Title len",
    "format": "integer"
  },
  "metaDescriptionLength": {
    "label": "Meta desc len",
    "format": "integer"
  },
  "h1Count": {
    "label": "H1",
    "format": "integer"
  },
  "noindex": {
    "label": "Noindex",
    "format": "boolean"
  },
  "canonical": {
    "label": "Canonical",
    "format": "string"
  },
  "imageAltCoverage": {
    "label": "Alt %",
    "format": "number"
  },
  "wordCount": {
    "label": "Words",
    "format": "integer"
  },
  "responseTimeMs": {
    "label": "TTFB (ms)",
    "format": "integer"
  },
  "redirectCount": {
    "label": "Redirects",
    "format": "integer"
  },
  "topIssues": {
    "label": "Top issues",
    "format": "array"
  },
  "error": {
    "label": "Error",
    "format": "string"
  }
}
```

## How it works

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

The Bulk PageSpeed & SEO Audit — Core Web Vitals & Lighthouse Actor is ready to run with the inputs already set for "Core Web Vitals bulk check (LCP, INP, CLS) for a list of URLs". [Sign up or log in](https://console.apify.com/create-task-from-example/lcPzS8Jhmg5deENPO) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Core Web Vitals bulk check (LCP, INP, CLS) for a list of URLs" task

The Bulk PageSpeed & SEO Audit — Core Web Vitals & Lighthouse Actor will start running based on the input automatically. You can also change all the input fields, like URLs to audit, max urls, and more, to match your specific use case.

### 3. Receive the "Core Web Vitals bulk check (LCP, INP, CLS) for a list of URLs" 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, status, charged, 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 "Core Web Vitals bulk check (LCP, INP, CLS) for a list of URLs" task via API](https://apify.com/benelux-signals/bulk-pagespeed-seo-audit.md).

## About this Actor

This example demonstrates how to use [Bulk PageSpeed & SEO Audit — Core Web Vitals & Lighthouse](https://apify.com/benelux-signals/bulk-pagespeed-seo-audit.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/benelux-signals/bulk-pagespeed-seo-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/benelux-signals/bulk-pagespeed-seo-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`).