Lighthouse Batch Auditor — Performance, SEO & Core Web Vitals

Audit 100 URLs at once for Lighthouse performance, SEO, accessibility, and best practices scores — plus Core Web Vitals (LCP, FID, CLS). Uses Google PageSpeed Insights API..

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Why this exists

Lighthouse is the standard web performance audit tool (28K GitHub stars, 1.5M npm weekly downloads). But existing Apify actors either charge $0.08 per audit or have low success rates.

This actor:

• Batch input — audit 100s of URLs in one run
• Mobile + Desktop — run both strategies per URL, or choose one
• All 4 Lighthouse categories — performance, SEO, accessibility, best practices
• Core Web Vitals breakdown — LCP, FID, CLS, FCP, TTFB with good/needs-improvement/poor ratings
• Top optimization opportunities — actionable recommendations, prioritized by time savings
• $0.003/audit — 25x cheaper than the leading alternative ($0.08/audit)

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Quick start

{
    "urls": ["https://example.com"],
    "strategy": "both"
}

Returns mobile and desktop scores for every URL.

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Feature comparison

Feature	Lighthouse Checker (38 users)	Page Speed Analyzer (16 users)	This actor
Batch URLs	Yes	Yes	Yes
Mobile + Desktop	Yes	Unknown	Yes (configurable)
Performance score	Yes	Yes	Yes
SEO score	Yes	Unknown	Yes
Accessibility score	Yes	Unknown	Yes
Best practices score	Yes	Unknown	Yes
Core Web Vitals breakdown	Unknown	Unknown	Yes (LCP, FID, CLS, FCP, TTFB)
Optimization opportunities	Unknown	Unknown	Yes (top 5 per URL)
Bring your own API key	Unknown	Unknown	Yes
Rate limit control	Unknown	Unknown	Yes (configurable delay)
Dry run mode	No	No	Yes
Free tier	No	No	3 audits free
Price per audit	$0.08	$0.005	$0.003

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How it works

This actor uses the Google PageSpeed Insights API, which runs Lighthouse in Google's infrastructure and returns the same scores you'd get from Chrome DevTools or web.dev/measure.

• No headless browser needed — pure API calls, 256MB RAM
• Free API: 25 requests per 100 seconds (without API key), 25,000/day (with API key)
• Same scores as running Lighthouse locally — Google runs the same engine

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Input

Field	Type	Default	Description
urls	array	(required)	URLs to audit
strategy	enum	both	mobile, desktop, or both
categories	array	all 4	Which categories: performance, seo, accessibility, best-practices
googleApiKey	string	(optional)	Your Google API key for higher rate limits. Free at console.cloud.google.com
delayMs	integer	1500	Delay between API calls in ms. Lower = faster but may hit rate limits
previousRunDatasetId	string	(optional)	Dataset ID from a previous run. Output includes delta showing score changes.
dryRun	boolean	false	Run audits without charges

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Output

Each URL × strategy combination produces one dataset item:

{
    "url": "https://example.com",
    "strategy": "mobile",
    "scores": {
        "performance": 87,
        "seo": 95,
        "accessibility": 78,
        "bestPractices": 92
    },
    "coreWebVitals": {
        "lcp": { "value": 2.1, "unit": "s", "rating": "good" },
        "fid": { "value": 45, "unit": "ms", "rating": "good" },
        "cls": { "value": 0.08, "unit": "", "rating": "needs-improvement" },
        "fcp": { "value": 1.5, "unit": "s", "rating": "good" },
        "ttfb": { "value": 320, "unit": "ms", "rating": "good" }
    },
    "topOpportunities": [
        {
            "id": "unused-css-rules",
            "title": "Remove unused CSS",
            "savings": "0.8 s",
            "description": "Remove dead rules from stylesheets..."
        }
    ],
    "auditedAt": "2026-04-13T10:00:00Z",
    "status": "success",
    "error": null
}

Delta tracking (score changes over time)

If you provide previousRunDatasetId, each result includes a delta object:

{
    "delta": {
        "performance": +5,
        "seo": 0,
        "accessibility": -2,
        "bestPractices": +3
    },
    "previousAuditedAt": "2026-04-10T10:00:00Z"
}

Find the dataset ID in the Output tab of any previous run. This lets you track whether your optimizations are actually improving scores.

Core Web Vitals ratings

Metric	Good	Needs Improvement	Poor
LCP	≤ 2.5s	2.5–4.0s	> 4.0s
FID	≤ 100ms	100–300ms	> 300ms
CLS	≤ 0.1	0.1–0.25	> 0.25

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Pricing

$0.003 per audit (pay-per-event pricing).

• "both" strategy = 2 audits per URL (mobile + desktop).
• Failed audits and dry runs are never charged.
• 100 URLs, both strategies = 200 audits = $0.60

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Limitations

• API-based, not local Chrome. Results come from Google's PageSpeed Insights API. Scores may differ slightly from running Lighthouse locally due to Google's infrastructure.
• Rate limits without API key. Without your own Google API key, you're limited to ~25 requests per 100 seconds. For large batches, provide your own key (free to create).
• No JavaScript execution control. Unlike running Lighthouse locally, you can't customize the network throttling or CPU slowdown.

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Run on Apify

No setup needed. Click above to run in the cloud. $0.003 per operation.