# Bulk Core Web Vitals & PageSpeed Audit (`webdatatools/core-web-vitals-audit`) Actor

Bulk Core Web Vitals and PageSpeed audit: Lighthouse performance, SEO and accessibility scores, LCP, CLS, INP, TBT and the top fixes — one row per URL and device.

- **URL**: https://apify.com/webdatatools/core-web-vitals-audit.md
- **Developed by:** [Murat Uzun](https://apify.com/webdatatools) (community)
- **Categories:** SEO tools, Developer tools, Lead generation
- **Features:** Limited permissions
- **Stats:** 8 total users, 5 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $3.00 / 1,000 results

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

### What is Bulk Core Web Vitals & PageSpeed Audit?

Bulk Core Web Vitals & PageSpeed Audit is an Apify Actor that runs Google PageSpeed Insights (Lighthouse plus Chrome UX Report field data) over a whole list of URLs and returns **one flat row per URL and device** — Lighthouse performance, SEO, accessibility and best-practices scores, LCP, CLS, INP, TBT, FCP, Speed Index and TTFB, a pass/fail on Google's Core Web Vitals thresholds, and the five biggest fixes Lighthouse found. It is the same data pagespeed.web.dev shows you one URL at a time, for 500 URLs in one run, straight into a dataset, CSV or your API.

### What data does the Core Web Vitals audit extract?

Every row mixes **lab data** (a fresh Lighthouse run on Google's hardware) with **field data** (real Chrome users, trailing 28 days, when the origin has enough traffic to be in CrUX):

| Field                                                    | Type    | Description                                                                                                           |
| -------------------------------------------------------- | ------- | --------------------------------------------------------------------------------------------------------------------- |
| `url` / `finalUrl`                                       | string  | Submitted URL and the URL Lighthouse measured after redirects                                                         |
| `strategy`                                               | string  | `mobile` or `desktop`                                                                                                 |
| `performanceScore`                                       | integer | Lighthouse performance, 0–100                                                                                         |
| `accessibilityScore` / `bestPracticesScore` / `seoScore` | integer | 0–100, `null` when the category was not requested                                                                     |
| `lcpMs` / `cls` / `tbtMs`                                | number  | Lab Largest Contentful Paint, Cumulative Layout Shift, Total Blocking Time                                            |
| `fcpMs` / `speedIndexMs` / `ttiMs` / `ttfbMs`            | integer | Lab First Contentful Paint, Speed Index, Time to Interactive, server response time                                    |
| `fieldData`                                              | object  | Real-user `lcpMs`, `cls`, `inpMs`, `fcpMs`, `ttfbMs`, `overallCategory` — `null` when CrUX has no data for the origin |
| `passesCoreWebVitals`                                    | boolean | True when field LCP ≤ 2500 ms, CLS ≤ 0.1 and INP ≤ 200 ms                                                             |
| `labGrade`                                               | string  | `good` (≥ 90), `needs-improvement` (≥ 50), `poor`                                                                     |
| `topOpportunities`                                       | array   | Up to 5 failed Lighthouse opportunities as `{id, title, savingsMs}`, biggest saving first                             |
| `lighthouseVersion` / `fetchedAt`                        | string  | Lighthouse version and the timestamp of Google's run                                                                  |
| `error` / `scrapedAt`                                    | string  | Why a URL has no metrics (e.g. a rate limit), and when the row was produced                                           |

### How to use Bulk Core Web Vitals & PageSpeed Audit

1. Get a **free Google PageSpeed Insights API key** (one click, no billing: https://developers.google.com/speed/docs/insights/v5/get-started) and paste it into **Google PageSpeed Insights API key**. Without a key Google's shared anonymous quota is almost always exhausted and every row comes back with an HTTP 429 `error`.
2. Paste your URLs into **URLs to audit** — one per row, full URLs, the exact pages you care about.
3. Pick the **Device strategy** (`mobile` is what Google ranks on; `both` returns two rows per URL) and any extra **Lighthouse categories**.
4. Leave **Max concurrency** at 2–3, click **Start**, then download JSON, CSV, Excel or HTML from the Output tab.

### Example input

```json
{
    "urls": ["https://apify.com", "https://example.com"],
    "apiKey": "YOUR_FREE_PSI_API_KEY",
    "strategy": "mobile",
    "categories": ["performance", "seo"],
    "maxConcurrency": 2
}
```

### Example output

```json
{
    "url": "https://apify.com",
    "finalUrl": "https://apify.com/",
    "strategy": "mobile",
    "performanceScore": 62,
    "seoScore": 92,
    "lcpMs": 4219,
    "cls": 0.041,
    "tbtMs": 891,
    "ttfbMs": 310,
    "fieldData": { "lcpMs": 2212, "cls": 0.04, "inpMs": 152, "ttfbMs": 612, "overallCategory": "AVERAGE" },
    "passesCoreWebVitals": true,
    "labGrade": "needs-improvement",
    "topOpportunities": [
        { "id": "unused-javascript", "title": "Reduce unused JavaScript", "savingsMs": 2150 },
        { "id": "render-blocking-resources", "title": "Eliminate render-blocking resources", "savingsMs": 780 }
    ],
    "lighthouseVersion": "12.2.1",
    "fetchedAt": "2026-09-12T15:28:41.903Z",
    "error": null,
    "scrapedAt": "2026-09-12T15:30:00.000Z"
}
```

### Input parameters

| Parameter        | Type            | Default                 | Description                                             |
| ---------------- | --------------- | ----------------------- | ------------------------------------------------------- |
| `urls`           | array           | `["https://apify.com"]` | Page URLs to audit, one row per URL × device            |
| `apiKey`         | string (secret) | none                    | Free Google PSI API key — 25,000 requests/day           |
| `strategy`       | enum            | `mobile`                | `mobile`, `desktop` or `both`                           |
| `categories`     | array           | `["performance"]`       | `performance`, `accessibility`, `best-practices`, `seo` |
| `locale`         | string          | `en`                    | Language of Lighthouse titles                           |
| `maxConcurrency` | integer         | 2                       | Parallel PSI requests (1–5)                             |

### Pricing

Pay-per-event: **$0.005 per audited URL × device** ($5 per 1,000 rows), plus a negligible $0.00005 actor-start fee, platform usage included. All the heavy lifting happens on Google's servers, so compute stays tiny — auditing 1,000 URLs costs $5 and a few cents of usage. `strategy: "both"` doubles the row count, so it doubles the price. Set **Maximum cost per run** and the Actor trims the list to what the budget covers instead of overspending.

### Bulk Core Web Vitals audit vs. pagespeed.web.dev and monitoring subscriptions

pagespeed.web.dev tests one URL per click and keeps no history. SEO monitoring suites (SpeedCurve, DebugBear, Semrush Site Audit) sell monthly seats. This Actor is pay-per-event with no subscription: run 500 prospect homepages overnight, schedule the same 50 URLs weekly to watch a regression, or call it from your own code — results land in a dataset you can join to anything else.

### Using Bulk Core Web Vitals & PageSpeed Audit with AI agents and MCP

The Actor is pay-per-event with limited permissions, the two requirements for an Actor to be callable through the Apify MCP server at mcp.apify.com. An agent passes `urls` (and ideally `apiKey`) and gets flat, numeric rows back — no HTML, no nesting to unpack — and the same call works from n8n, Make, Zapier or LangChain through Apify's integrations.

### FAQ

**Do I need a Google API key?**
Runs of up to 5 URLs work without a key on a shared demo quota, so you can try the Actor straight away. For bigger batches paste your own free PageSpeed Insights API key (25,000 requests per day) into the API key field - Google's anonymous quota is shared by everyone and is usually exhausted.

**Do I really need an API key?** For anything beyond a smoke test, yes. The keyless quota is shared by every anonymous caller on the internet and is usually spent; those rows come back with `error` set and null metrics instead of failing the run. A key is free and allows 25,000 requests/day.

**Why is `fieldData` null?** CrUX only has data for origins with enough real Chrome traffic. Small sites get lab data only — `passesCoreWebVitals` is then `null`, because INP cannot be measured in a lab run.

**Why does the score differ between two runs of the same URL?** Lighthouse is a live measurement on shared hardware; performance scores move a few points between runs. Field data is stable, lab data is directional.

**How long does a run take?** 10–30 seconds per URL × device, two or three in parallel — about 5–10 minutes per 100 URLs.

**Is this legal?** The Actor only calls Google's public PageSpeed Insights API and collects no personal data.

**Can I export to CSV or Excel?** Yes, from the Output tab or the API, and every field is flat except `fieldData` and `topOpportunities`.

### Related Actors

**Pricing:** Bulk Core Web Vitals & PageSpeed Audit costs **$5.00 per 1,000 results** (pay per result, no subscription; Apify's free plan credit covers small runs).

Part of the **webdatatools** web-intelligence suite — every Actor is pay-per-event, reads public data
without a login, and returns one clean row per entity:

Browse the whole suite at [webdatatools](https://paulet4a-commits.github.io/webdatatools/), or call ten of
these Actors straight from Claude, Cursor or Cline with the
[webdatatools MCP server](https://github.com/paulet4a-commits/webdatatools-mcp-server).

**Website & domain intelligence**

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- [Tech Stack Detector — Wappalyzer & BuiltWith Alternative](https://apify.com/webdatatools/tech-stack-detector) — CMS, e-commerce, analytics, pixels and payments per domain
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- [Domain Security Audit (TLS, HTTP headers, redirects, robots)](https://apify.com/webdatatools/domain-security-audit) — TLS expiry, security headers, redirect chain, robots and llms.txt
- [Subdomain Finder (Certificate Transparency)](https://apify.com/webdatatools/subdomain-finder) — every subdomain seen in CT logs, with a live DNS check
- [On-Page SEO Audit](https://apify.com/webdatatools/seo-page-audit) — title, meta, headings, links, images and schema issues per page
- [Sitemap URL Extractor & Change Monitor](https://apify.com/webdatatools/sitemap-extractor) — every sitemap URL, or new and removed pages between runs
- [Wayback Machine Snapshot & Page Change Tracker](https://apify.com/webdatatools/wayback-page-diff) — how a page changed over time, or every archived snapshot
- [Bulk Domain WHOIS & RDAP Lookup](https://apify.com/webdatatools/domain-whois-rdap) — registrar, dates, status and nameservers per domain
- [Web Scraper — CSS Selector & Data Extractor](https://apify.com/webdatatools/css-selector-extractor) — pull any CSS selector off any page, one row per URL
- [Website Screenshot Generator](https://apify.com/webdatatools/website-screenshot) — full-page or viewport PNG/JPEG screenshots of any URL

**Content for AI, LLMs and RAG**

- [AI Web Search & Read: Google results as clean Markdown](https://apify.com/webdatatools/ai-web-search) — a query turned into clean Markdown from the top search results
- [Website to Markdown — Content Crawler for LLM & RAG](https://apify.com/webdatatools/website-to-markdown) — any site as clean Markdown per page, no browser
- [llms.txt Generator (Website to llms.txt & llms-full.txt)](https://apify.com/webdatatools/llms-txt-generator) — llms.txt and llms-full.txt for any website or docs site
- [PDF to Markdown Converter (Text, Headings, Metadata)](https://apify.com/webdatatools/pdf-to-markdown) — PDF files to clean Markdown with headings, metadata and token counts
- [RAG Text Chunker (Markdown to Chunks, Token Counts)](https://apify.com/webdatatools/rag-text-chunker) — heading-aware RAG chunks with exact GPT token counts from any dataset
- [Article & News Extractor (clean text, author, date, markdown)](https://apify.com/webdatatools/article-extractor) — clean article text, author, date and Markdown per URL
- [Structured Data & JSON-LD Extractor (Schema.org, Open Graph)](https://apify.com/webdatatools/structured-data-extractor) — Schema.org and Open Graph data from any page
- [Google News Scraper (RSS search by keyword, topic, site)](https://apify.com/webdatatools/google-news-scraper) — news results by keyword, topic or site
- [Press Release Monitor: PR Newswire, BusinessWire, GlobeNewswire](https://apify.com/webdatatools/press-release-monitor) — PR Newswire, Business Wire and GlobeNewswire releases

**Search, video and social**

- [YouTube Shorts Scraper](https://apify.com/webdatatools/youtube-shorts-scraper) — Shorts from channels, hashtags and searches with view counts
- [Pinterest Pins Scraper](https://apify.com/webdatatools/pinterest-pins-scraper) — latest pins of public Pinterest profiles and boards
- [YouTube Transcript Scraper](https://apify.com/webdatatools/youtube-transcript-scraper) — captions and subtitles as text + timed segments, per video or channel
- [Google Search Results Scraper — SERP API](https://apify.com/webdatatools/google-search-scraper) — organic SERP results per keyword and country
- [YouTube Comments Scraper — Comments & Replies](https://apify.com/webdatatools/youtube-comments-scraper) — comments and replies with likes, no API key
- [YouTube Channel Latest Videos (RSS, no API key)](https://apify.com/webdatatools/youtube-channel-videos) — the latest 15 videos of any channel from RSS
- [YouTube Channel Scraper (videos, shorts, live)](https://apify.com/webdatatools/youtube-channel-scraper) — a channel's full video, shorts and stream list
- [YouTube Search Results Scraper (videos, channels, no API key)](https://apify.com/webdatatools/youtube-search-scraper) — videos, channels and playlists per query
- [YouTube Video Details Scraper (views, likes, description, tags)](https://apify.com/webdatatools/youtube-video-details) — views, likes, description, tags and chapters per video
- [Apple Podcasts Lookup & Episodes Scraper](https://apify.com/webdatatools/podcast-lookup) — podcast metadata and episodes from iTunes and RSS
- [Bluesky Post, Search & Profile Scraper](https://apify.com/webdatatools/bluesky-scraper) — posts, profiles, followers and threads from the AT Protocol API
- [X Tweet Scraper (Twitter Posts by URL, No Login)](https://apify.com/webdatatools/x-tweet-scraper) — X (Twitter) posts by URL with likes, replies, author, media and MP4 links
- [TikTok Profile Scraper (Followers, Likes, Bio, Video Stats)](https://apify.com/webdatatools/tiktok-profile-scraper) — TikTok profiles with exact follower and like counts, plus video stats
- [Telegram Channel Posts Scraper](https://apify.com/webdatatools/telegram-channel-scraper) — posts, views and media flags from any public channel
- [Substack Publication & Posts Scraper](https://apify.com/webdatatools/substack-scraper) — archive, authors and paywall status per publication
- [Google Play Reviews Scraper](https://apify.com/webdatatools/google-play-reviews-scraper) — reviews, ratings, replies and app versions per app
- [App Store Reviews Scraper](https://apify.com/webdatatools/app-store-reviews-scraper) — iOS reviews and ratings per app and country
- [Trustpilot Reviews Scraper (Ratings, Replies, No Login)](https://apify.com/webdatatools/trustpilot-reviews-scraper) — Trustpilot reviews with stars, full text, verification and company replies
- [Google Trends Scraper](https://apify.com/webdatatools/google-trends-scraper) — interest over time, by region, and related queries per keyword
- [Google Ads Transparency Scraper](https://apify.com/webdatatools/google-ads-transparency-scraper) — ads any advertiser runs on Google, with format and dates
- [Keyword Suggestions Scraper (Google, YouTube, Amazon, Bing)](https://apify.com/webdatatools/keyword-suggestions-scraper) — autocomplete keyword ideas from four search engines
- [Bilibili Scraper (Videos, Search, Popular)](https://apify.com/webdatatools/bilibili-scraper) — Chinese video platform: views, likes, coins, danmaku, uploader
- [Mastodon Scraper (Hashtags, Accounts, Trending)](https://apify.com/webdatatools/mastodon-scraper) — public fediverse posts by hashtag, account or trending
- [Meetup Events Scraper (Search by Keyword & City)](https://apify.com/webdatatools/meetup-events-scraper) — upcoming events with RSVPs, fees, venues and groups
- [Eventbrite Scraper (Events by Keyword & City)](https://apify.com/webdatatools/eventbrite-scraper) — events by keyword and city with venue, dates and organizer

**Leads, jobs and company data**

- [Career Site Jobs API (Greenhouse, Lever, Ashby, Workday +1)](https://apify.com/webdatatools/career-site-jobs-api) — company domains in, their open jobs out, ATS detected automatically
- [Workday Jobs Scraper](https://apify.com/webdatatools/workday-jobs-scraper) — jobs with full descriptions from any Workday career site
- [Google Maps Scraper](https://apify.com/webdatatools/google-maps-scraper) — businesses with phone, website, address, rating and coordinates per search
- [LinkedIn Jobs Scraper](https://apify.com/webdatatools/linkedin-jobs-scraper) — job titles, companies, locations and full descriptions from LinkedIn job search
- [Company 360: full company profile from a domain](https://apify.com/webdatatools/company-360) — one row per domain: contacts, tech, security, hiring and company facts
- [Hiring Signals Scraper (Greenhouse, Lever, Ashby, Workable)](https://apify.com/webdatatools/hiring-signals) — open jobs and hiring velocity from 10 public ATS boards
- [Y Combinator Companies & Founders Scraper](https://apify.com/webdatatools/yc-companies-scraper) — YC startups by batch, industry and hiring status
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- [Email Validator & Verifier — Bulk Email Check](https://apify.com/webdatatools/email-validator) — syntax, MX, disposable, role and free-provider checks
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- [Stock, Crypto & FX Quotes](https://apify.com/webdatatools/market-quotes) — one row per symbol from Yahoo, Binance and ECB rates
- [Remote Jobs Aggregator (RemoteOK, WWR, Hacker News)](https://apify.com/webdatatools/remote-jobs-aggregator) — one clean row per remote job, de-duplicated across feeds
- [Greenhouse Jobs Scraper](https://apify.com/webdatatools/greenhouse-jobs-scraper) — jobs with descriptions from any Greenhouse job board
- [Lever Jobs Scraper](https://apify.com/webdatatools/lever-jobs-scraper) — jobs with descriptions from any Lever careers page
- [Ashby Jobs Scraper](https://apify.com/webdatatools/ashby-jobs-scraper) — jobs, salaries and descriptions from any Ashby job board
- [SmartRecruiters Jobs Scraper](https://apify.com/webdatatools/smartrecruiters-jobs-scraper) — jobs with descriptions from any SmartRecruiters company
- [Seek Jobs Scraper (Australia & New Zealand)](https://apify.com/webdatatools/seek-jobs-scraper) — Seek job ads with salary, work type and location
- [Dice Jobs Scraper](https://apify.com/webdatatools/dice-jobs-scraper) — US tech jobs from Dice with salary and remote flag
- [AutoScout24 Scraper](https://apify.com/webdatatools/autoscout24-scraper) — European car listings with price, mileage and seller
- [Rightmove Scraper](https://apify.com/webdatatools/rightmove-scraper) — UK property for sale or rent with price and agent
- [Wellfound Jobs Scraper (AngelList Startup Jobs)](https://apify.com/webdatatools/wellfound-jobs-scraper) — startup jobs with salary and equity ranges, company size and stage
- [Yandex Maps Scraper (Places, Ratings, Phones)](https://apify.com/webdatatools/yandex-maps-scraper) — businesses in Russia, Türkiye and the CIS with phones, ratings, hours
- [Craigslist Scraper (Listings, Prices, Locations)](https://apify.com/webdatatools/craigslist-scraper) — listings in any area and category with price, date and coordinates
- [JobStreet Scraper (Malaysia, Singapore, PH, ID + JobsDB)](https://apify.com/webdatatools/jobstreet-scraper) — JobStreet and JobsDB jobs in 6 Asian countries with parsed salaries
- [InfoJobs Scraper (Spain Jobs, Salaries, Companies)](https://apify.com/webdatatools/infojobs-scraper) — Spanish jobs with salary range, contract type and full description
- [StepStone Scraper (Germany, Austria, Belgium Jobs)](https://apify.com/webdatatools/stepstone-scraper) — StepStone jobs in Germany, Austria and Belgium by keyword and city
- [Zillow Scraper (Homes for Sale, Rent & Sold, Zestimates)](https://apify.com/webdatatools/zillow-scraper) — Zillow homes for sale, rent or sold with Zestimates, beds, baths and photos
- [Zillow Home Details Scraper (Description, Photos, History)](https://apify.com/webdatatools/zillow-detail-scraper) — full Zillow property pages: description, photos, HOA, tax rate, agent
- [Redfin Scraper (Homes for Sale, Prices, Details)](https://apify.com/webdatatools/redfin-scraper) — US homes for sale or sold from any Redfin search, with price and details
- [Kleinanzeigen Scraper (Ads, Prices, Locations)](https://apify.com/webdatatools/kleinanzeigen-scraper) — German classifieds with price, VB flag, ZIP, city and seller type

**Developer, app and research data**

- [npm, PyPI & Crates.io Package Health Checker](https://apify.com/webdatatools/package-health-checker) — releases, downloads, deprecation and a health score
- [GitHub Repository Health & Activity Report](https://apify.com/webdatatools/github-repo-health) — stars, commits, contributors and risk flags per repo
- [VS Code Marketplace Extension Scraper (installs, ratings)](https://apify.com/webdatatools/vscode-marketplace-extensions) — installs, ratings and versions per extension
- [Chrome Web Store Extension Scraper (installs, ratings)](https://apify.com/webdatatools/chrome-web-store-extensions) — users, rating, version and developer per extension
- [Google Play Scraper](https://apify.com/webdatatools/google-play-scraper) — apps, ratings, installs, developer contact and reviews
- [App Store (iOS) App Metadata, Ratings & Top Charts Lookup](https://apify.com/webdatatools/app-store-lookup) — ratings, price, version and charts per app
- [CrossRef DOI & Citation Metadata Lookup](https://apify.com/webdatatools/crossref-doi-lookup) — papers, authors, journals and citation counts
- [FDA Recalls & Adverse Events Monitor (openFDA)](https://apify.com/webdatatools/openfda-recall-monitor) — food, drug and device recalls from openFDA
- [iCal / ICS Calendar Feed to Events Extractor](https://apify.com/webdatatools/ical-calendar-extractor) — any public calendar feed as event rows
- [Shopify Store Products Scraper](https://apify.com/webdatatools/shopify-products-scraper) — catalog, prices, variants and stock per store
- [Hacker News Search & Front Page Scraper](https://apify.com/webdatatools/hacker-news-scraper) — stories, comments and points by query or front page
- [GitHub Trending Repositories Scraper](https://apify.com/webdatatools/github-trending-scraper) — trending repos and developers by language and period
- [Stack Overflow & Stack Exchange Q\&A Scraper](https://apify.com/webdatatools/stackexchange-scraper) — questions, answers and scores by query, tag or site
- [Bulk Image Downloader](https://apify.com/webdatatools/bulk-image-downloader) — download image URLs to storage with size, dimensions and a ZIP
- [Google Flights Scraper (Prices, Airlines, Stops)](https://apify.com/webdatatools/google-flights-scraper) — flight prices, airlines, times, stops and CO2 by route and date
- [Google Hotels Scraper (Prices, Ratings, Reviews)](https://apify.com/webdatatools/google-hotels-scraper) — hotel prices per night, stars, rating and reviews by city and dates
- [Booking.com Scraper (Hotel Prices, Ratings, Availability)](https://apify.com/webdatatools/booking-scraper) — Booking.com hotels for any city and dates with prices, scores and deals
- [Airbnb Scraper (Listings, Prices, Ratings, Coordinates)](https://apify.com/webdatatools/airbnb-scraper) — Airbnb stays for any city and dates with prices, ratings and coordinates
- [AliExpress Scraper (Search Products & Prices)](https://apify.com/webdatatools/aliexpress-scraper) — AliExpress search results with USD price, discount and rank
- [Lazada Scraper (Products, Prices, Sold, Ratings)](https://apify.com/webdatatools/lazada-scraper) — Lazada products in 6 countries with price, rating, units sold and seller
- [Trendyol Scraper (Turkey Products, Prices, Ratings)](https://apify.com/webdatatools/trendyol-scraper) — Trendyol products with price, basket discount, rating and promotions

### Support and feedback

Missing a metric or an opportunity you need in the row? Open an issue on the **Issues** tab.

# Actor input Schema

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

Enter the page URLs to audit, one per row, e.g. https://apify.com. Each URL returns one row per device strategy. Audit the exact URL you care about (a landing page, not only the homepage) - PageSpeed Insights follows redirects but scores the page it lands on.

## `apiKey` (type: `string`):

Paste your free Google PageSpeed Insights API key (https://developers.google.com/speed/docs/insights/v5/get-started), e.g. AIzaSy... Runs of up to 5 URLs work without a key on a shared demo quota; larger batches need your own key (25,000 requests/day, free).

## `strategy` (type: `string`):

Select the device Lighthouse should emulate, e.g. mobile. Google ranks on mobile, so audit mobile unless you specifically need desktop numbers. Choose 'Both' to get one row per device (two billable rows per URL).

## `categories` (type: `array`):

Select which Lighthouse categories to score, e.g. performance, seo. Every extra category makes the Google request slower; performance alone already returns all Core Web Vitals and the optimisation opportunities.

## `locale` (type: `string`):

Enter the language for Lighthouse titles and display values, e.g. en, de or tr. Only the wording of titles changes, never the metrics.

## `maxConcurrency` (type: `integer`):

Enter how many PageSpeed Insights requests may run in parallel, e.g. 2. Google rate-limits hard and one Lighthouse run takes 10-30 seconds, so keep this at 2-3 unless you have your own API key.

## `inputDatasetId` (type: `string`):

Take the items from another Actor run's dataset, e.g. "aBcD1234". Combined with the list above.

## `inputField` (type: `string`):

Column holding the value, e.g. "url" (the default). Array columns are flattened.

## Actor input object example

```json
{
  "urls": [
    "https://apify.com",
    "https://example.com"
  ],
  "strategy": "mobile",
  "categories": [
    "performance",
    "seo"
  ],
  "locale": "en",
  "maxConcurrency": 2
}
```

# Actor output Schema

## `audits` (type: `string`):

All audited URLs — download as JSON, CSV, Excel or HTML.

# 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://example.com"
    ],
    "strategy": "mobile",
    "categories": [
        "performance",
        "seo"
    ],
    "locale": "en",
    "maxConcurrency": 2
};

// Run the Actor and wait for it to finish
const run = await client.actor("webdatatools/core-web-vitals-audit").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://example.com",
    ],
    "strategy": "mobile",
    "categories": [
        "performance",
        "seo",
    ],
    "locale": "en",
    "maxConcurrency": 2,
}

# Run the Actor and wait for it to finish
run = client.actor("webdatatools/core-web-vitals-audit").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://example.com"
  ],
  "strategy": "mobile",
  "categories": [
    "performance",
    "seo"
  ],
  "locale": "en",
  "maxConcurrency": 2
}' |
apify call webdatatools/core-web-vitals-audit --silent --output-dataset

```

## MCP server setup

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

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/FM0Kfh5kY4KVsuHVe/builds/P0BvbFoRFC0hOCftB/openapi.json
