Bulk PageSpeed & Core Web Vitals Checker

Test hundreds of pages, or an entire sitemap, with Google PageSpeed Insights (Lighthouse) in one run. For every URL you get Performance, SEO, Accessibility and Best-practices scores, lab metrics (LCP, CLS, TBT, FCP, Speed Index, TTFB), real-user Core Web Vitals from Chrome UX Report data with a pass/fail verdict, and the top 5 fixes with estimated savings.

No API key or setup needed. Paste URLs or a sitemap and click Start.

Why use it

• Bulk: audit a whole site from its sitemap.xml (sitemap indexes supported) instead of testing pages one by one on pagespeed.web.dev.
• Mobile and desktop in the same run.
• Real-user data: Core Web Vitals (LCP, INP, CLS) at p75 from CrUX, falling back to origin-level data for low-traffic pages, with a Google-threshold passed/failed verdict.
• Actionable: top fixes per page, such as "Reduce unused JavaScript: 900 ms / 200 KB".
• Monitor over time: schedule it weekly, send results to Google Sheets, Slack or Looker Studio, and catch regressions after deploys.
• Summary: average scores per device, how many pages pass Core Web Vitals, and the 10 slowest pages (OUTPUT record).

Who it's for

SEO agencies running client audits, developers checking a release, e-commerce teams tracking speed, and anyone comparing their site to competitors.

Input

Field	What it does
urls	Pages to test (https:// added if missing).
sitemapUrls	Sitemap or sitemap-index URLs; pages are added to the list.
maxUrlsFromSitemaps	Cap on pages taken from sitemaps (default 50).
strategies	mobile, desktop or both. Each URL × device = one result.
categories	Any of performance, accessibility, best-practices, seo.
includeOpportunities	Include top 5 fixes per page (default on).
locale	Language of audit titles (e.g. en, de).
apiKey	Optional: your own free Google PageSpeed API key for very large jobs.

{
  "sitemapUrls": ["https://example.com/sitemap.xml"],
  "maxUrlsFromSitemaps": 200,
  "strategies": ["mobile", "desktop"]
}

Output (one row per URL × device)

{
  "url": "https://web.dev/",
  "finalUrl": "https://web.dev/",
  "strategy": "mobile",
  "performanceScore": 48,
  "accessibilityScore": 90,
  "bestPracticesScore": 96,
  "seoScore": 92,
  "lcpMs": 7804,
  "fcpMs": 7804,
  "tbtMs": 287,
  "cls": 0.121,
  "speedIndexMs": 7804,
  "ttiMs": 19934,
  "ttfbMs": 3,
  "totalPageKb": 3631,
  "fieldDataSource": "url",
  "fieldLcpMs": 3069,
  "fieldInpMs": 233,
  "fieldCls": 0.01,
  "fieldFcpMs": 3079,
  "fieldTtfbMs": 1784,
  "fieldOverall": "SLOW",
  "coreWebVitals": "failed",
  "opportunities": [
    {
      "id": "unused-javascript",
      "title": "Reduce unused JavaScript",
      "savingsMs": 3450,
      "savingsKb": 878
    },
    {
      "id": "unused-css-rules",
      "title": "Reduce unused CSS",
      "savingsMs": 1190,
      "savingsKb": 140
    }
  ],
  "lighthouseVersion": "13.6.0",
  "analyzedAt": "2026-11-05T15:30:02.018Z",
  "reportUrl": "https://pagespeed.web.dev/analysis?url=https%3A%2F%2Fweb.dev%2F&form_factor=mobile"
}

Export to CSV/Excel/JSON or connect with Google Sheets, Zapier, Make or n8n.

Pricing

Pay per result: you pay only for successfully analyzed pages (one URL on one device = one result). Failed pages (e.g. the site is down) are listed in the summary and are not charged. Set a maximum cost per run and it stops cleanly.

FAQ

Are scores identical to pagespeed.web.dev? Yes. It uses the same Google PageSpeed Insights API. Lab scores naturally vary a few points between runs.

Why is real-user data sometimes empty? Google only has Chrome UX Report data for pages and sites with enough traffic. Lab metrics are always included.

How long does it take? Each audit takes about 10–30 seconds on Google's side, and several run in parallel, so roughly 100 pages take about 10 minutes.

Something wrong? Open an issue with the URL and it will be fixed quickly.