⚡ Page Speed Analyzer — Lighthouse & Web Vitals

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Run real Google Lighthouse audits at scale — Core Web Vitals, performance scores, accessibility, SEO, and ranked optimization opportunities — for any URL, with pay-per-audit billing.

📊 Sample Output

👁 Bulk Lighthouse page speed analyzer — Core Web Vitals + Performance, Accessibility, Best Practices, SEO scores across multiple URLs for technical SEO audits, site optimization tracking, competitive performance benchmarking

What it does

This Actor runs a full Google Lighthouse audit against any public URL and returns the same metrics you'd get from running Lighthouse in Chrome DevTools — performance score (0–100), Core Web Vitals (LCP, FCP, CLS, TBT, SI), accessibility score, best-practices score, SEO score, and a ranked list of optimization opportunities with estimated savings.

It runs real Lighthouse 12.x as a subprocess against bundled Chromium inside the Actor container — it does not depend on the Google PageSpeed Insights public API (whose anonymous quota is permanently 0 and which Google has effectively deprecated for unauthenticated callers). You always get a real audit, even on URLs that PSI refuses to score.

If you do have a Google PageSpeed Insights API key, you can pass it as googleApiKey for a faster path (~5–15s vs ~30–90s for in-container Lighthouse). Most users don't need this.

Buyers use this for site-wide performance monitoring, pre-launch QA, SEO audits, agency client reports, and Core Web Vitals regression tracking after deploys.

Use cases

• Bulk site audits — feed a list of URLs from a sitemap and audit every page
• Performance regression monitoring — schedule daily runs to catch deploys that tanked LCP
• Agency client reports — generate Lighthouse data for monthly performance reviews
• Pre-launch QA — score every page on staging before pushing to production
• Core Web Vitals tracking — measure LCP/CLS/INP trends over time across your top pages
• Competitive benchmarking — audit competitor sites alongside your own for sales decks

Inputs

Output

{
"url":"https://www.shopify.com/pricing",
"strategy":"mobile",
"auditedAt":"2026-05-23T14:22:11Z",
"method":"lighthouse-local",
"scores":{
"performance":78,
"accessibility":92,
"bestPractices":96,
"seo":100
},
"coreWebVitals":{
"lcp":{"value":2.8,"unit":"s","score":0.72},
"fcp":{"value":1.4,"unit":"s","score":0.91},
"cls":{"value":0.04,"score":1.0},
"tbt":{"value":220,"unit":"ms","score":0.65},
"si":{"value":3.1,"unit":"s","score":0.83}
},
"opportunities":[
{"title":"Reduce unused JavaScript","estimatedSavingsMs":1240,"displayValue":"Potential savings of 380 KiB"},
{"title":"Properly size images","estimatedSavingsMs":680,"displayValue":"Potential savings of 220 KiB"}
]
}

Pricing

Pay-per-event: $0.02 per audit result, plus a tiny $0.00005 per-GB Actor Start charge. A typical single-URL audit costs ~$0.02 total. There's no monthly minimum — you only pay for audits that actually complete.

Comparison

Use this Actor when you want zero infrastructure, pay-per-audit billing, and a real Lighthouse audit (not the PSI API) wired into Apify's scheduling, retries, and dataset storage.

Cross-links

Other NexGenData SEO & performance tools you may want to chain with this:

• SEO Site Auditor — on-page SEO audit (titles, meta, headings)
• Broken Link Checker — crawl and flag 404s
• Sitemap Crawler — pull all URLs from a sitemap to feed into this audit
• Schema Markup Validator — validate JSON-LD/microdata
• SERP Keyword Tracker — pair perf data with rank movement

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Don't have an Apify account yet? Get $5 in platform credit to try this Actor and 30,000+ others — no credit card required.

NexGenData — thenextgennexus.com

💰 Pricing Example

This actor uses Pay-Per-Event pricing — you only pay for results.

• Typical run (small): 100 results × $0.02 = $2.00
• Medium run: 500 results × $0.02 = $10.00
• Large run (power user): 2,000 results × $0.02 = $40.00

Free Apify accounts get $5/mo in platform credit. A typical SEO + web performance workflow at this scale typically exceeds the free credit — upgrade to a paid Apify plan for unrestricted use.

🔗 Related Actors

Pair with these for a complete workflow:

• 💡 Lighthouse Bulk Checker — Performance at Scale — full Lighthouse audit (performance, SEO, accessibility, best practices)
• 🧱 Wappalyzer Replacement — Tech Stack Detection API — detect the full tech stack on any website (CMS, analytics, frameworks)
• 🔍 Tech Stack Detector — BuiltWith Alternative — bulk tech-stack profiling for a list of company domains
• 🔍 SEO MCP — AI Website Auditing & Analysis — MCP server bundling 15+ SEO + web-performance tools for AI agents

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Quick start

Input (paste into the input editor or pass via API):

{
"url":"https://www.example.com",
"strategy":"mobile",
"categories":"PERFORMANCE"
}

Example output (one record; representative fields):

{
"url":"https://www.example.com",
"strategy":"mobile",
"performanceScore":82,
"lcpSeconds":2.1,
"cls":0.03,
"inpMs":180
}

Pricing: $0.02 per audit. You pay only for results, billed per run by Apify.

Data freshness: Google Lighthouse run live against the URL at run time — results are as fresh as the moment you run it.

Use it in a workflow: chain this with related NexGenData actors, or drop it into n8n via the n8n-nodes-nexgendata community nodes. Browse the full NexGenData storefront by workflow.