# Measure a web page's weight and carbon per view

**Use case:** 

Loads one sample page in headless Chrome with an empty cache and reports the bytes transferred by resource type, the request count, third party weight and an estimate of grams of CO2e per view from the Sustainable Web Design Model v4. Swap in your own pages and pick desktop or mobile.

## Input

```json
{
  "urls": [
    {
      "url": "https://apify.com"
    }
  ],
  "device": "desktop",
  "scrollPage": false,
  "waitSecs": 3,
  "gridIntensity": 494,
  "greenHostingFactor": 0,
  "timeoutSecs": 60
}
```

## Output

```json
{
  "url": {
    "label": "Page",
    "format": "link"
  },
  "ok": {
    "label": "OK",
    "format": "boolean"
  },
  "transferKB": {
    "label": "Transferred (kB)",
    "format": "number"
  },
  "requestCount": {
    "label": "Requests",
    "format": "number"
  },
  "thirdPartyRequests": {
    "label": "Third party requests",
    "format": "number"
  },
  "gramsCO2ePerView": {
    "label": "g CO2e per view",
    "format": "number"
  },
  "carbonRating": {
    "label": "Rating",
    "format": "text"
  },
  "error": {
    "label": "Error",
    "format": "text"
  }
}
```

## How it works

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

The Page Weight and Carbon: transfer size, requests and CO2e Actor is ready to run with the inputs already set for "Measure a web page's weight and carbon per view". [Sign up or log in](https://console.apify.com/create-task-from-example/X1CL4R1FLBazAouGq) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Measure a web page's weight and carbon per view" task

The Page Weight and Carbon: transfer size, requests and CO2e Actor will start running based on the input automatically. You can also change all the input fields, like pages, device, and more, to match your specific use case.

### 3. Receive the "Measure a web page's weight and carbon per view" 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, OK, transferred (kb), 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 "Measure a web page's weight and carbon per view" task via API](https://apify.com/examsens.ai/page-weight-carbon.md).

## About this Actor

This example demonstrates how to use [Page Weight and Carbon: transfer size, requests and CO2e](https://apify.com/examsens.ai/page-weight-carbon.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/examsens.ai/page-weight-carbon.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/examsens.ai/page-weight-carbon.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`).