🚨 VitalsBeacon - Core Web Vitals API

Get Lighthouse Performance Scores for Any Website

🚀 Quick Test

�� API Documentation

Basic Usage:

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

Specific Categories:

GET https://vitalsbeacon.com/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": "2025-06-26T21:00:00.000Z",
  "scores": {
    "performance": 85,
    "accessibility": 92,
    "bestPractices": 88,
    "seo": 95
  },
  "coreWebVitals": {
    "largestContentfulPaint": {
      "value": "2.1 s",
      "score": 95,
      "rating": "good"
    },
    "cumulativeLayoutShift": {
      "value": "0.05",
      "score": 98,
      "rating": "good"
    }
  }
}

Core Web Vitals Ratings:

Good: LCP ≤ 2.5s, CLS ≤ 0.1
Needs Improvement: LCP 2.5-4s, CLS 0.1-0.25
Poor: LCP > 4s, CLS > 0.25

Other Endpoints:

/health - Service status