Bulk Lighthouse Audit

Run Google Lighthouse on hundreds of URLs in one go and get a clean table of scores, Core Web Vitals, and the fixes that matter most for every page, on mobile and desktop.

Lighthouse is the open-source engine behind PageSpeed Insights and Chrome DevTools audits. This Actor runs it in the cloud for you, one page at a time so results stay consistent.

What you get for each URL

• Scores (0–100): Performance, Accessibility, Best Practices, SEO.
• Lab metrics: Largest Contentful Paint, Cumulative Layout Shift, Total Blocking Time, First Contentful Paint, Speed Index, Time to Interactive.
• Core Web Vitals ratings: good / needs improvement / poor for LCP, CLS and TBT (the lab stand-in for INP).
• Top fixes: the performance issues with the biggest estimated time and byte savings, ranked.
• Optional full HTML report for each audit.
• Optional real-user data: add your own Google API key to include Chrome UX Report field data (75th percentile LCP, INP, CLS, FCP, TTFB) and a pass/fail verdict.

Use cases

• Audit a whole site or a list of landing pages before and after a release.
• Monitor Core Web Vitals weekly with a schedule and catch regressions.
• Compare your pages against competitors'.
• Produce client-ready SEO and accessibility audits for agencies.

Input

Field	What to enter
URLs	One per line, up to 500 per run
Device	Mobile, desktop, or both
Categories	Any of Performance, Accessibility, Best practices, SEO
Save full HTML reports	Store and link the full Lighthouse report
Your Google API key	Optional; enables real-user field data

Output

{
  "url": "https://example.com/",
  "strategy": "mobile",
  "finalUrl": "https://example.com/",
  "scores": { "performance": 37, "accessibility": 95, "bestPractices": 77, "seo": 100 },
  "metrics": { "largestContentfulPaintMs": 4468, "cumulativeLayoutShift": 0.57, "totalBlockingTimeMs": 1421, "firstContentfulPaintMs": 1266, "speedIndexMs": 2592, "timeToInteractiveMs": 14487 },
  "labVitals": { "lcp": "poor", "cls": "poor", "tbt": "poor" },
  "opportunities": [
    { "id": "bootup-time", "title": "Reduce JavaScript execution time", "estimatedSavingsMs": 1400, "estimatedSavingsBytes": null },
    { "id": "unused-javascript", "title": "Reduce unused JavaScript", "estimatedSavingsMs": 640, "estimatedSavingsBytes": 224809 }
  ],
  "failedAuditCount": 18,
  "fieldData": null,
  "htmlReportUrl": null,
  "lighthouseVersion": "13.5.0",
  "auditedAt": "2026-10-17T12:00:00.000Z",
  "error": null
}

Pricing

Pay per completed audit (one URL on one device). Failed audits, such as pages that don't load, aren't charged. Set a maximum charge per run to cap spending.

Notes

• Lab results use Lighthouse's standard simulated throttling, so scores are comparable between runs, though they can differ slightly from PageSpeed Insights, which runs on Google's own machines.
• Only audit sites you own or have permission to test. Each audit loads the page once, like a normal visitor.

Data sources and terms

• Audits run the open-source Lighthouse (Apache 2.0) on Apify's servers. No Google API is called on your behalf unless you add your own key.
• Real-user data comes from the Chrome UX Report API only when you supply your own Google API key, under your own agreement with Google.