Bulk PageSpeed Insights Checker: Lighthouse & Core Web Vitals

Audit a list of URLs or a whole sitemap with Google's official PageSpeed Insights and get one CSV-ready row per URL, mobile and desktop side by side:

• Lighthouse scores: Performance, Accessibility, Best Practices, SEO (0–100)
• Lab metrics: LCP, FCP, TBT, CLS, Speed Index
• Real-user Core Web Vitals (CrUX): LCP, INP, CLS, FCP, TTFB at the 75th percentile, with a clear passed / failed result and whether the data is for the page or the whole site
• Top 3 fixes with the estimated time saved, e.g. "Render-blocking requests (~1.5 s)"
• A link to the full Google report for every URL

Monitoring built in: give the run a name and schedule it. Every run is compared with the previous one, and significantChange tells you when something really moved (10+ points or a changed Core Web Vitals result), instead of alerting on Lighthouse's normal noise.

No setup: an API key is built in. Pages that cannot be audited are free.

Who uses it

You are	You use it to
SEO / web agency	Monthly speed reports for all clients, sitemap-wide audits, proof of improvements
Shop or site owner	Find the slowest templates and the fixes with the biggest impact
Developer team	Catch performance regressions after releases with scheduled monitoring
AI agents	Call it as an MCP tool: "Which of my 200 pages fail Core Web Vitals on mobile?"

Output (one row per URL)

Columns are prefixed with mobile_ and desktop_:

Field	Example	Meaning
url, finalUrl	https://www.example.com/	input and URL after redirects
status	ok	ok, partial (one device failed), error, invalid
mobile_performance … mobile_seo	62, 91, 96, 100	Lighthouse category scores
mobile_lcpMs, mobile_fcpMs, mobile_tbtMs, mobile_cls, mobile_speedIndexMs	4322, 1840, 350, 0.045, 3901	lab metrics
mobile_fieldLcpMs, mobile_fieldInpMs, mobile_fieldCls, mobile_fieldFcpMs, mobile_fieldTtfbMs	3100, 180, 0.08	real users, p75 (CrUX)
mobile_fieldScope	url / origin	page-level data or whole-site fallback
mobile_cwvAssessment	failed	passed, failed, no-field-data
mobile_topIssues	["Render-blocking requests (~1.5 s)", …]	biggest savings first
mobile_performanceChange, significantChange	-18, true	only with monitoring
reportUrl	https://pagespeed.web.dev/analysis?url=…	full Google report
lighthouseVersion, fetchedAt, errors		transparency

The Overview table shows the most important columns; export everything as CSV, Excel, JSON or via API.

Core Web Vitals thresholds used (p75, "good"): LCP ≤ 2.5 s, INP ≤ 200 ms, CLS ≤ 0.1, as defined by Google on web.dev. Sites with too little traffic have no real-user data; you then still get all lab metrics and no-field-data.

Pricing

Pay per audit, no subscription. One audit = one URL on one device.

Event	Price
page-audited	$5.00 per 1,000 audits (a URL on mobile + desktop = 2 audits = $0.010)
Page could not be loaded, API error, invalid input	free

Set a maximum cost per run in Apify; the Actor stops cleanly when it is reached.

Input example

{
  "urls": ["https://www.example.com", "apify.com"],
  "sitemapUrl": "https://www.example.com/sitemap.xml",
  "maxSitemapUrls": 100,
  "strategies": ["mobile", "desktop"],
  "monitorName": "client-a",
  "locale": "en"
}

Tips

• Weekly monitoring: schedule the Actor with a monitorName and connect a Slack or email integration that triggers when significantChange is true.
• Scores vary a few points between runs because Lighthouse simulates a real device. Compare trends and use significantChange, not single points.
• Audit titles in your language: set locale, e.g. de for German.

FAQ

Do I need a Google API key? No. You can add your own key for very large volumes; it is stored encrypted.

Why is a page marked error? Google's Lighthouse could not load it (for example: blocked for bots, 404, timeout). The reason is in errors, and you are not charged.

Something wrong or missing? Open an issue on the Actor page. We usually answer within one business day.

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Kurz auf Deutsch

Prüft beliebig viele URLs oder eine ganze Sitemap mit Google PageSpeed Insights: Lighthouse-Werte, Labormesswerte, echte Core Web Vitals (CrUX) mit Bestanden/Nicht bestanden und die 3 wichtigsten Verbesserungen, mobil und Desktop in einer Zeile. Mit Monitoring-Funktion für echte Veränderungen. Nicht prüfbare Seiten sind kostenlos. Tipp: locale: "de" für deutsche Audit-Titel.

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Anbieter / Impressum (Angaben gemäß § 5 DDG): Michael Schönherr · Am Spiegelwald 1 · 08344 Grünhain-Beierfeld · Deutschland · E-Mail: m.schoenherr80@gmail.com