PageSpeed Intelligence - Complete Website Performance Analysis with AI

PSI + Lighthouse + Tech Stack + AI Recommendations in One Actor by John Rippy | johnrippy.link

🏆 2025 Zapier Automation Hero of the Year — Project Phoenix: A 95-step AI sales pipeline cutting development time by 50%. Read more →

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Why This Actor Exists

Most performance tools give you data without context. You get a list of issues, but no guidance on what to actually do based on your specific tech stack.

PageSpeed Intelligence combines:

1. Google PageSpeed Insights - Real-user CrUX data + lab metrics

2. Lighthouse Audits - Detailed performance, accessibility, SEO audits

3. Tech Stack Detection - Identify CMS, frameworks, analytics, CDN, hosting

4. AI Recommendations - Actionable optimization advice tailored to your stack

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What Makes This Different

The Problem with Generic Recommendations

"Reduce JavaScript execution time" is useless advice if you don't know:

Are they using React, Vue, or vanilla JS?
Is the site on WordPress with heavy plugins?
Are they using a CDN?
What analytics/tracking scripts are loading?

Stack-Aware Recommendations

This actor detects 50+ technologies and provides recommendations that actually make sense:

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Use Cases

1. Client Onboarding Audits

Run a comprehensive performance audit in minutes instead of hours. Get a complete picture of their site's performance, tech stack, and prioritized recommendations.

2. Competitor Analysis

Compare performance metrics and tech stacks across multiple competitors. Identify what high-performing competitors are doing differently.

3. Performance Optimization Projects

Get a prioritized list of issues with estimated impact, specific to their technology stack.

4. Pre/Post Optimization Reports

Document before and after metrics to show the ROI of performance work.

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Quick Start Examples

Example 1: Full Analysis

{
"url": "https://example.com",
"strategy": "both",
"includePageSpeedInsights": true,
"includeLighthouse": true,
"includeTechStack": true,
"includeAIRecommendations": true
}

Example 2: Tech Stack Only

{
"url": "https://example.com",
"includeTechStack": true,
"includePageSpeedInsights": false,
"includeLighthouse": false
}

Example 3: Batch Competitor Analysis

{
"urls": [
"https://yoursite.com",
"https://competitor1.com",
"https://competitor2.com"
],
"strategy": "mobile"
}

Example 4: With Webhook

{
"url": "https://example.com",
"webhookUrl": "https://hooks.zapier.com/hooks/catch/12345/abcdef/"
}

Example 5: Demo Mode (Free Testing)

{
"demoMode": true
}

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Input Parameters

*Either url or urls is required (unless using demoMode)

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Output Format

{
"url": "https://example.com",
"timestamp": "2024-12-25T12:00:00.000Z",
"overallScore": 78,

"pageSpeedInsights": {
"mobile": {
"performanceScore": 72,
"hasFieldData": true,
"coreWebVitals": {
"lcp": { "value": 2.8, "rating": "needs-improvement" },
"fid": { "value": 45, "rating": "good" },
"cls": { "value": 0.15, "rating": "needs-improvement" }
}
},
"desktop": {
"performanceScore": 89,
"hasFieldData": true,
"coreWebVitals": {
"lcp": { "value": 1.2, "rating": "good" },
"fid": { "value": 12, "rating": "good" },
"cls": { "value": 0.02, "rating": "good" }
}
}
},

"lighthouse": {
"performance": 72,
"accessibility": 85,
"bestPractices": 92,
"seo": 98,
"opportunities": [
{
"id": "render-blocking-resources",
"title": "Eliminate render-blocking resources",
"potentialSavings": "1,450ms"
}
],
"diagnostics": [...]
},

"techStack": {
"cms": "WordPress 6.4",
"ecommerce": "WooCommerce 8.3",
"framework": null,
"analytics": ["Google Analytics 4", "Meta Pixel", "Hotjar"],
"cdn": "Cloudflare",
"hosting": "WP Engine",
"security": ["Cloudflare WAF", "SSL"],
"marketing": ["HubSpot", "Mailchimp"],
"other": ["Google Tag Manager", "reCAPTCHA"]
},

"recommendations": [
{
"priority": 1,
"category": "performance",
"issue": "Large Contentful Paint is slow on mobile (2.8s)",
"recommendation": "For WordPress + WooCommerce: Enable LiteSpeed Cache or WP Rocket with preload feature. Consider implementing Cloudflare APO for full-page edge caching.",
"estimatedImpact": "high",
"difficulty": "medium"
},
{
"priority": 2,
"category": "performance",
"issue": "Multiple analytics scripts blocking render",
"recommendation": "Move GA4, Meta Pixel, and Hotjar to Google Tag Manager with delayed loading. Use GTM's trigger on 'DOM Ready' or 'Window Loaded' instead of 'Page View'.",
"estimatedImpact": "medium",
"difficulty": "low"
}
]
}

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Tech Stack Detection

This actor detects 50+ technologies across these categories:

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AI Recommendations

When includeAIRecommendations is enabled (default), the actor generates:

1. Prioritized Action Items - Ranked by impact and difficulty

2. Stack-Specific Advice - Recommendations that work with your tech

3. Quick Wins - Low-effort, high-impact changes

4. Strategic Improvements - Larger projects worth planning

Without Anthropic API Key

Uses rule-based recommendations based on detected tech stack.

With Anthropic API Key

Uses Claude to generate more nuanced, context-aware recommendations.

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Webhook Integration

Webhook Payload

{
"event": "analysis_complete",
"timestamp": "2024-12-25T12:00:00.000Z",
"actor": "pagespeed-intelligence",
"runId": "abc123",
"status": "success",
"summary": {
"urlsAnalyzed": 3,
"avgPerformanceScore": 76,
"criticalIssues": 4,
"recommendations": 12
},
"results": [...]
}

Integration Examples

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API Usage

Using the Apify API

import { ApifyClient } from 'apify-client';

const client = new ApifyClient({ token: 'YOUR_API_TOKEN' });

const run = await client.actor('localhowl/pagespeed-intelligence').call({
url: 'https://example.com',
strategy: 'both',
includeAIRecommendations: true
});

const { items } = await client.dataset(run.defaultDatasetId).listItems();
console.log(items[0].recommendations);

Using cURL

curl -X POST "https://api.apify.com/v2/acts/localhowl~pagespeed-intelligence/runs?token=YOUR_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"url": "https://example.com",
"strategy": "mobile",
"includeAIRecommendations": true
}'

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Perfect For

SEO Agencies

Client onboarding audits in minutes
Monthly performance reporting
Competitor analysis with tech stack comparison

Web Developers

Pre-launch performance checks
Optimization project planning
Stack-aware debugging

Marketing Teams

Landing page performance optimization
A/B test impact analysis
Tracking script audit

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Pricing

Demo Mode: Free (sample data, no API calls)
Standard Usage: Apify compute units only
With API Keys: Higher rate limits, enhanced AI recommendations

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Limitations

CrUX Data: Requires sufficient traffic (may not be available for new sites)
Tech Detection: Some obfuscated or custom technologies may not be detected
AI Recommendations: Quality depends on Anthropic API availability

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Related Actors

PageSpeed Insights - Simpler, PSI-only version without tech stack or AI
Google Lighthouse Checker - Detailed Lighthouse audits with custom configs
Tech Stack Scraper - Standalone tech stack detection

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Built by John Rippy | johnrippy.link