# Mobile vs desktop PageSpeed Insights test

**Use case:** 

Compare one page on mobile and desktop in a single run. Each device is a separate audit with Lighthouse scores and Core Web Vitals. Two successful audits cost $0.006. $3 per 1,000 successful audits; failures free.

## Input

```json
{
  "urls": [
    "https://www.wikipedia.org/"
  ],
  "strategy": "both",
  "categories": [
    "performance",
    "accessibility",
    "best-practices",
    "seo"
  ],
  "maxConcurrency": 6,
  "maxResults": 1000,
  "requestTimeoutSecs": 120
}
```

## Output

```json
{
  "url": {
    "label": "URL",
    "format": "string"
  },
  "strategy": {
    "label": "Device",
    "format": "string"
  },
  "status": {
    "label": "Status",
    "format": "string"
  },
  "scores.performance": {
    "label": "Performance",
    "format": "number"
  },
  "scores.accessibility": {
    "label": "Accessibility",
    "format": "number"
  },
  "scores.bestPractices": {
    "label": "Best practices",
    "format": "number"
  },
  "scores.seo": {
    "label": "SEO",
    "format": "number"
  },
  "lab.lcpMs": {
    "label": "LCP (ms)",
    "format": "number"
  },
  "lab.cls": {
    "label": "CLS",
    "format": "number"
  },
  "lab.tbtMs": {
    "label": "TBT (ms)",
    "format": "number"
  },
  "fieldData.overallCategory": {
    "label": "Real-user CWV"
  },
  "errorCode": {
    "label": "Error",
    "format": "string"
  }
}
```

## How it works

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

The Bulk PageSpeed Insights Test: Lighthouse & Core Web Vitals Actor is ready to run with the inputs already set for "Mobile vs desktop PageSpeed Insights test". [Sign up or log in](https://console.apify.com/create-task-from-example/uAZnP4Q5beCL1W9Px) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Mobile vs desktop PageSpeed Insights test" task

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

### 3. Receive the "Mobile vs desktop PageSpeed Insights test" 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, device, status, 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 "Mobile vs desktop PageSpeed Insights test" task via API](https://apify.com/hillcountrybots/bulk-pagespeed-checker.md).

## FAQ

### Why are there two rows?

Device is set to both, so the Actor runs one mobile audit and one desktop audit. Each successful row is charged $0.003.

### Are lab scores identical every time?

No. Lighthouse lab scores can move a few points between runs. That also happens on pagespeed.web.dev.

## About this Actor

This example demonstrates how to use [Bulk PageSpeed Insights Test: Lighthouse & Core Web Vitals](https://apify.com/hillcountrybots/bulk-pagespeed-checker.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/hillcountrybots/bulk-pagespeed-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/hillcountrybots/bulk-pagespeed-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`).