# Bulk PageSpeed & Core Web Vitals Checker (No API Key) (`mirumiru_miru17/page-speed-core-web-vitals`) Actor

Bulk-test page speed for any list of URLs with Google Lighthouse. Get performance, SEO and accessibility scores, LCP, CLS, TBT, FCP and the top fixes for mobile and desktop. No API key needed. English or Japanese report.

- **URL**: https://apify.com/mirumiru_miru17/page-speed-core-web-vitals.md
- **Developed by:** [Miyuu Nishida](https://apify.com/mirumiru_miru17) (community)
- **Categories:** SEO tools, Developer tools
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $10.50 / 1,000 page testeds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

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 examples already wired to this Actor's own input schema, see the [API](#api) section below.

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`).

# README

## Page Speed & Core Web Vitals Checker

Test the speed of many pages at once with **Google Lighthouse**, the same engine behind PageSpeed Insights. Paste a list of URLs and get performance, SEO, accessibility and best-practices scores, the **Core Web Vitals** (LCP, CLS, TBT, FCP, Speed Index) with good / needs-improvement / poor ratings, and the **top fixes** ranked by time saved.

**No API key, no quota, no setup.** Mobile, desktop or both. Report in English or Japanese.

### Why use it

- **Bulk testing**: check 20, 100 or 500 URLs in one run instead of one by one in PageSpeed Insights.
- **Weekly monitoring**: schedule it and catch speed regressions after a deploy.
- **Client reports**: get a color-coded HTML report to share.
- **No Google API key**: Lighthouse runs inside the Actor.

### Input

| Field | Description |
| --- | --- |
| `urls` | Pages to test, one full URL per line. |
| `device` | `mobile` (default), `desktop` or `both`. |
| `maxUrls` | Safety limit (default 20). |
| `language` | `en` or `ja`. |

### Output

One row per URL and device:

```json
{
  "url": "https://example.com",
  "device": "mobile",
  "performanceScore": 72,
  "seoScore": 92,
  "accessibilityScore": 88,
  "lcpMs": 3120, "lcpRating": "needs-improvement",
  "cls": 0.04, "clsRating": "good",
  "tbtMs": 410, "tbtRating": "needs-improvement",
  "topOpportunities": [{ "title": "Reduce unused JavaScript", "estimatedSavingsMs": 900 }]
}
```

Plus `REPORT.html` in the key-value store.

### Pricing

Pay per tested page (one URL on one device). Failed URLs are not charged.

### Good to know

- Results are **lab data** (simulated device and network), like the Lighthouse tab in PageSpeed Insights. Scores vary a little between runs.
- Test pages you own or manage.

### More tools from the same author

- [SEO Audit & AI Search Readiness Checker](https://apify.com/mirumiru_miru17/seo-ai-readiness-audit): full-site SEO audit, AI search readiness score and llms.txt generator
- [Audio & Video to Text Transcriber (Whisper)](https://apify.com/mirumiru_miru17/audio-video-transcriber): transcripts and SRT subtitles in Japanese and 90+ languages

***

### 日本語

URLのリストを入れるだけで、Google Lighthouseでページの表示速度をまとめて計測します。速度スコア、SEO・アクセシビリティのスコア、Core Web Vitals（LCP・CLS・TBTなど）と、効果の大きい改善点を出力します。APIキーは不要です。`language` を「日本語」にすると、改善点とレポートが日本語になります。

# Actor input Schema

## `urls` (type: `array`):

Pages to test. One full URL per line.

## `device` (type: `string`):

Lighthouse emulation. Google ranks on mobile.

## `maxUrls` (type: `integer`):

Safety limit. You are charged per tested URL and device.

## `language` (type: `string`):

Language of fix titles and the HTML report.

## Actor input object example

```json
{
  "urls": [
    "https://apify.com",
    "https://crawlee.dev"
  ],
  "device": "mobile",
  "maxUrls": 20,
  "language": "en"
}
```

# Actor output Schema

## `results` (type: `string`):

Scores, Core Web Vitals and top fixes for each URL and device.

## `report` (type: `string`):

Shareable color-coded report.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "urls": [
        "https://apify.com",
        "https://crawlee.dev"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("mirumiru_miru17/page-speed-core-web-vitals").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "urls": [
        "https://apify.com",
        "https://crawlee.dev",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("mirumiru_miru17/page-speed-core-web-vitals").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "urls": [
    "https://apify.com",
    "https://crawlee.dev"
  ]
}' |
apify call mirumiru_miru17/page-speed-core-web-vitals --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,mirumiru_miru17/page-speed-core-web-vitals"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/dVX2RAv77kMDSkKWh/builds/EmpzIYNQTZVy2SDB6/openapi.json