SEO Score

What It Does

Runs multiple SEO audits in parallel and aggregates results. On-page SEO (23% weight) evaluates title tags, meta descriptions, heading hierarchy, image alt text, internal/external links, content length, keyword diversity, keyword prominence, and keyword-in-URL. Core Web Vitals (15%) queries Google CrUX for LCP, INP, CLS, TTFB, and FCP. Technical SEO (20%) checks canonical URL validity, noindex directives (meta robots + X-Robots-Tag), viewport meta tag with mobile-friendliness validation, HTML lang attribute, HTTPS, HTTP status code, and character encoding. Structured data (8%) parses JSON-LD and Microdata for Schema.org types, validates required fields, and checks for high-value types like Organization, WebSite, BreadcrumbList, Article, and Product. Content quality (15%) measures Flesch Reading Ease score, image dimension/lazy-loading optimization, and link text descriptiveness. Content freshness (5%) analyzes Last-Modified headers, JSON-LD dates, and meta tag timestamps. Link health (10%) checks for broken links, redirect chains, and anchor text quality. Social meta (4%) scores Open Graph and Twitter Card tag completeness. All component scores are normalized to a 0-100 scale. Handles partial failures gracefully — if one component fails, others still contribute.

Why It's Useful

SEO involves dozens of factors across technical, content, and off-page categories. A composite score distills this complexity into a single actionable metric for tracking, reporting, and benchmarking. Component breakdowns show exactly where to invest effort. The scoring aligns with official Google Lighthouse SEO audits (14 automated checks) and Google Search Essentials, ensuring the score reflects what actually impacts search rankings.

Use Cases

Parameters

Response Fields

Code Examples

curl "https://api.edgedns.dev/v1/score/seo" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d "domain=example.com"

const response = await fetch(
  'https://api.edgedns.dev/v1/score/seo?domain=example.com',
  {
    headers: {
      'Authorization': 'Bearer YOUR_API_KEY'
    }
  }
);

const data = await response.json();
console.log(data);

import requests

response = requests.get(
    'https://api.edgedns.dev/v1/score/seo',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    params={
    'domain': 'example.com'
    }
)

data = response.json()
print(data)

Related Endpoints

External References

Learn more about the standards and protocols behind this endpoint.