Bulk Lighthouse Audit: Core Web Vitals, SEO and Accessibility Scores for Many URLs

Run real Google Lighthouse audits on a list of URLs in one run, with no API key and no PageSpeed Insights quota. Each page gets its performance, accessibility, best practices and SEO scores, the lab Core Web Vitals (LCP, CLS, TBT, FCP, Speed Index) and a short list of the top issues to fix. $0.01 per audit ($10 per 1,000), no compute fees on top, and pages that fail to load are free.

Lighthouse (the open-source auditing tool from Google Chrome, Apache-2.0) runs inside the Actor in headless Chrome, so you are not limited by the shared keyless PageSpeed API quota that often returns HTTP 429.

What you get per URL

Field	Example
performance, accessibility, bestPractices, seo	92, 88, 100, 90 (0-100, same scale as PageSpeed Insights)
largestContentfulPaintMs, cumulativeLayoutShift, totalBlockingTimeMs	2100, 0.02, 150
firstContentfulPaintMs, speedIndexMs, serverResponseTimeMs, totalByteWeight	1200, 1800, 180, 845000
topIssues	[{"title": "Render blocking requests", "category": "performance", "savingsMs": 300}, ...]
reportHtmlUrl (optional)	Public link to the full Lighthouse HTML report
error	Why an audit failed (failed audits are free)

Export to CSV, Excel, JSON or Google Sheets from the dataset, or call it from the API, Make, Zapier or n8n.

Use cases

• SEO agencies: score a client's top 50 landing pages before and after a fix, in one CSV.
• Developers: check Core Web Vitals across a whole sitemap (pair with Sitemap URL Extractor).
• Lead generation: find prospects with slow or inaccessible websites and show them the numbers.
• Monitoring: schedule a weekly run and track scores over time.

How to use

1. Paste URLs or bare domains into URLs.
2. Pick Mobile (the PageSpeed Insights default), Desktop, or Both (2 audits per URL).
3. Optionally limit Categories, turn on Save HTML report, and start the run.

Example input:

{
  "urls": ["https://example.com", "https://apify.com"],
  "formFactor": "mobile",
  "categories": [],
  "maxIssues": 10,
  "saveHtmlReport": true
}

Pricing

Pay per event: $0.01 per successful Lighthouse audit (Silver and Gold plans get automatic discounts). Platform compute is included. Free: invalid URLs, DNS errors, refused connections, timeouts, HTTP 4xx/5xx pages and pages Lighthouse cannot score. With "Both" devices, each device counts as one audit. Set a max charge per run and the Actor stops cleanly when it is reached.

Notes and limits

• Audits run one at a time so CPU contention doesn't distort performance scores; expect about 15-30 seconds per page (heavy pages up to ~2 minutes).
• Scores are lab data from simulated throttling, like the Lighthouse part of PageSpeed Insights. Real-user field data (CrUX) is not included.
• Scores vary a few points between runs on any Lighthouse setup; compare trends, not single points.
• Audit only sites you own or have permission to test. Pages behind a login or CAPTCHA are not audited.
• Not affiliated with or endorsed by Google. Lighthouse is a trademark of Google LLC.

FAQ

Is this the same as Google PageSpeed Insights? It runs the same open-source Lighthouse engine that PageSpeed Insights uses for its lab section, but on Apify instead of Google's API, so no API key or quota is needed.

Why is my score different from PageSpeed Insights? Hardware, network location and Lighthouse version differ, so scores can differ by a few points. Use the same Actor setup for before/after comparisons.

Can I audit a whole website? Yes: get all page URLs with Sitemap URL Extractor and paste them in.

Related actors

• SEO On-Page Audit: titles, meta tags, headings, canonical, hreflang and JSON-LD at HTTP speed.
• Broken Link Checker: find broken links and redirects across a site.
• Bulk Website Screenshot: full-page screenshots of many URLs.
• Tech Stack Detector: which CMS, analytics and frameworks a site uses.