Benchmark Your Pages Against Competitors on PageSpeed

'We're faster than them' needs their numbers, not just yours. Thirdwatch's PageSpeed Insights Scraper runs Google PageSpeed Insights against a list of URLs and returns Lighthouse scores and Core Web Vitals as rows — mobile or desktop, bulk or single.

Skip the setup: Run this as a ready-to-go task on Apify — pre-loaded with the configuration from this guide.

Why benchmark against competitors

Speed claims in competitive reviews need the other side's scores — and they have to come from the same audit conditions to be comparable.

Put both sets of URLs in one run; the rows come back strategy-normalised and comparable.

The Actor wraps the official PageSpeed Insights API, so results are Google's own audit numbers — just at bulk, as data.

How does this compare to the alternatives?

Why this Actor

• All four Lighthouse scores per URL: performance, accessibility, best practices, SEO.
• Core Web Vitals as separate fields — LCP, CLS, INP, TBT, FCP, Speed Index.
• Mobile and desktop strategies in the same input format.
• Bring your own free Google API key for real daily quota.
• Bulk input — audit a whole sitemap's worth of URLs per run.

How to do it in 3 steps

Step 1: Configure the input

Set the inputs as shown below — urls takes the targets, strategy picks mobile or desktop, and apiKey accepts your free Google API key for real quota.

Step 2: Run the Actor

Run it from the console, the API, or the linked saved task. One dataset row is written per audited page.

Step 3: Use the output

Each row carries the four Lighthouse scores plus Core Web Vitals — lcp, cls, inp, tbt, fcp, speedIndex — and the audit timestamp.

{
  "urls": [
    "https://example.com",
    "https://apify.com"
  ],
  "strategy": "mobile"
}

Each dataset row looks like:

{
  "url": "https://example.com",
  "strategy": "mobile",
  "fetchTime": "2026-09-16T10:00:00.000Z",
  "performanceScore": 92,
  "accessibilityScore": 96,
  "bestPracticesScore": 100,
  "seoScore": 91,
  "lcp": 1.8,
  "cls": 0.02,
  "inp": 45,
  "tbt": 12,
  "fcp": 1.1,
  "speedIndex": 2.3,
  "lighthouseVersion": "12.x"
}

What to watch for

Without your own apiKey, Google's shared unauthenticated quota is small — expect http_429 error rows on busy days. Grab a free key for anything beyond a smoke test.

Related use cases

• Run a Mobile Lighthouse Audit on Any Page
• Run a Desktop Lighthouse Audit in Bulk
• Track Core Web Vitals Across Your Key Pages
• Sweep a Site List for SEO and Best-Practice Scores
• All Thirdwatch use-case guides

Run the PageSpeed Insights Scraper on Apify Store — pay per result, free to try, no credit card to test.