🚨 VitalsBeacon - Core Web Vitals API

Lighthouse Performance Audits for Any Website

🚀 Quick Test

Test Google.com (Quick Mode)

Test Example.com (Full Audit)

Test Stripe.com (Mobile)

📖 API Usage

Basic Audit:

GET /audit?url=https://example.com

Returns all categories: Performance, Accessibility, Best Practices, SEO

Quick Mode (Performance Only):

GET /audit?url=https://example.com&quick=true

Faster! Only runs performance audit (~15-20s instead of 30-40s)

Mobile vs Desktop:

GET /audit?url=https://example.com&strategy=mobile

GET /audit?url=https://example.com&strategy=desktop

Test mobile or desktop experience (default: desktop)

Custom Categories:

GET /audit?url=https://example.com&categories=performance,seo

Available Categories:

• performance - Core Web Vitals & speed metrics
• accessibility - A11y compliance
• best-practices - Web best practices
• seo - SEO optimization

Response Format:

{
  "url": "https://example.com",
  "timestamp": "2025-10-17T12:00:00.000Z",
  "strategy": "desktop",
  "scores": {
    "performance": 95,
    "accessibility": 88,
    "bestPractices": 92,
    "seo": 90
  },
  "coreWebVitals": {
    "largestContentfulPaint": {
      "value": "1.2 s",
      "score": 100,
      "rating": "good"
    },
    ...
  },
  "cached": false
}

⚡ Performance Tips:

• Results are cached for 24 hours - second request is instant!
• Use quick=true for faster audits
• Mobile and desktop are cached separately
• Queue limit: 10 audits at once
• Rate limit: 50 audits per hour per IP

Other Endpoints:

• /health - Service health check
• /status - Queue & memory stats
• /cache-stats - Redis cache info

Built with ❤️ using Lighthouse, Hono, and Bun