Complete SEO Audit Tool - Comprehensive Website SEO Analysis

Apify Actor for comprehensive SEO audit of websites with detailed scoring and actionable recommendations.

Description

This actor performs a complete SEO audit of websites, analyzing on-page SEO elements, technical SEO, content quality, performance metrics, and more. It provides detailed scores (0-100) per page and a comprehensive site-wide summary with actionable recommendations.

Features

On-Page SEO

✅ Meta Tags Analysis: Title, description, Open Graph, Twitter Cards, canonical URLs, robots meta
✅ Headings Structure: H1-H6 hierarchy validation and structure analysis
✅ Content Analysis: Word count, readability score, keyword density, thin content detection
✅ Content Intent: Detects informational, transactional, or navigational content
✅ H1/Title Consistency: Checks alignment between H1 and page title

Technical SEO

✅ HTTPS/SSL: Certificate validation, expiry date, issuer information, and mixed content detection
✅ Mobile Optimization: Viewport validation and responsive design checks
✅ Sitemap & Robots.txt: Detection and validation (including sitemap_index.xml and robots.txt parsing)
✅ Structured Data: JSON-LD, microdata, and RDFa detection with type identification
✅ AMP: AMP page detection
✅ Indexability: Checks if page is indexable (meta robots, canonical status)
✅ Rendering: JavaScript rendering analysis
✅ Pagination: Detects pagination and page numbers

Performance

✅ Core Web Vitals: LCP (Largest Contentful Paint), CLS (Cumulative Layout Shift), FID (First Input Delay)
✅ Page Speed Metrics: Page load time, Time to First Byte, First Contentful Paint, Speed Index
✅ Performance Timing: DOM content loaded, load complete, interactive time, Total Blocking Time

Links & Images

✅ Links Analysis: Internal/external links count, broken links detection, redirects, anchor text analysis
✅ Link Context: Differentiates links in navigation, footer, and content
✅ Images SEO: Alt text coverage, title attributes, file size (KB), format detection, optimization checks

Accessibility

✅ ARIA Labels: Detection and counting
✅ Language Attributes: HTML lang attribute validation
✅ Skip Links: Navigation accessibility checks
✅ Color Contrast: Basic contrast validation

Scoring & Reporting

✅ Overall SEO Score: 0-100 score per page
✅ Category Scores: Individual scores for each SEO category
✅ Issue Detection: Critical, warnings, and info issues with specific recommendations
✅ Structured Issues: Issues with ID, category, priority, estimated impact, and fix hints
✅ Site Summary: Average scores, top issues, score distribution, and crawl coverage

Input

{
  "startUrls": ["https://example.com"],
  "crawlPages": false,
  "maxPages": 50,
  "maxConcurrency": 5,
  "auditMetaTags": true,
  "auditHeadings": true,
  "auditContent": true,
  "auditTechnical": true,
  "auditPerformance": true,
  "auditSchema": true,
  "auditLinks": true,
  "auditImages": true,
  "auditAccessibility": true
}

Parameters

• startUrls (required) : List of URLs to start auditing from
• crawlPages (optional, default: false) : Enable crawling of pages to audit multiple pages
• maxPages (optional, default: 50) : Maximum number of pages to crawl and audit
• maxConcurrency (optional, default: 5) : Number of pages to audit concurrently
• auditMetaTags (optional, default: true) : Audit meta tags (title, description, OG tags, etc.)
• auditHeadings (optional, default: true) : Audit heading structure (H1-H6)
• auditContent (optional, default: true) : Analyze content quality, length, keywords
• auditTechnical (optional, default: true) : Audit technical aspects (HTTPS, canonical, robots, etc.)
• auditPerformance (optional, default: true) : Analyze page speed and Core Web Vitals
• auditSchema (optional, default: true) : Check for structured data (JSON-LD, microdata)
• auditLinks (optional, default: true) : Analyze internal and external links
• auditImages (optional, default: true) : Basic image SEO checks
• auditAccessibility (optional, default: true) : Basic accessibility checks

Output

The actor generates two types of records:

Page Record

Each page record contains a complete audit with:

• Overall SEO score (0-100)
• Category-specific scores (metaTags, headings, content, technical, performance, links, images, accessibility)
• Detailed audit results for each category
• List of issues (critical, warnings, info) with structured metadata
• Crawl depth information

Site Summary

The site summary provides:

• Average SEO score across all pages
• Category averages
• Top issues across the site
• Score distribution (excellent, good, needs improvement, poor)
• Crawl coverage statistics
• Duplicate titles and descriptions detection

Example Output

Page Record Example

{
  "type": "page",
  "pageUrl": "https://example.com/",
  "title": "Example - Home Page",
  "httpStatus": 200,
  "audit": {
    "overallScore": 75,
    "categoryScores": {
      "metaTags": 80,
      "headings": 90,
      "content": 70,
      "technical": 85,
      "performance": 65,
      "links": 75,
      "images": 60,
      "accessibility": 70
    },
    "metaTags": {
      "title": {
        "present": true,
        "value": "Example - Home Page",
        "length": 20,
        "lengthPixels": 130,
        "isOptimal": true,
        "recommendation": null
      },
      "description": {
        "present": true,
        "value": "Welcome to Example website",
        "length": 25,
        "lengthPixels": 163,
        "isOptimal": false,
        "recommendation": "Description too short (25 characters, ~163px). Recommended: 120-160 characters (~780-1040px)."
      },
      "canonical": {
        "present": true,
        "url": "https://example.com/",
        "selfReferencing": true
      }
    },
    "headings": {
      "h1": {
        "count": 1,
        "text": ["Main Heading"],
        "isOptimal": true
      },
      "h2": {
        "count": 3,
        "text": ["Section 1", "Section 2", "Section 3"]
      }
    },
    "content": {
      "wordCount": 500,
      "characterCount": 3000,
      "paragraphCount": 10,
      "readabilityScore": 65,
      "intent": "informational",
      "h1TitleConsistency": true
    },
    "performance": {
      "pageLoadTime": 2500,
      "timeToFirstByte": 300,
      "firstContentfulPaint": 1200,
      "largestContentfulPaint": 1800,
      "cumulativeLayoutShift": 0.1,
      "coreWebVitals": {
        "lcp": 1800,
        "cls": 0.1
      }
    },
    "links": {
      "internal": {
        "count": 25,
        "unique": 20
      },
      "external": {
        "count": 5,
        "unique": 5
      },
      "broken": {
        "count": 1,
        "urls": ["https://example.com/broken-page"],
        "verified": [
          {
            "url": "https://example.com/broken-page",
            "statusCode": 404,
            "error": "Not Found"
          }
        ]
      }
    },
    "images": {
      "total": 10,
      "withAlt": 8,
      "withoutAlt": 2,
      "details": [
        {
          "url": "https://example.com/image.jpg",
          "alt": "Example image",
          "hasAlt": true,
          "sizeKB": 150,
          "format": "jpeg"
        }
      ]
    },
    "issues": {
      "critical": [
        {
          "id": "MISSING_ALT_TEXT",
          "message": "2 images missing alt text",
          "category": "images",
          "priority": 5,
          "estimatedImpact": "high",
          "fixHint": "Add descriptive alt text to all images for better accessibility and SEO.",
          "pagesAffected": ["https://example.com/"]
        }
      ],
      "warnings": [],
      "info": []
    },
    "crawlDepth": 0
  }
}

Site Summary Example

{
  "type": "site-summary",
  "pagesCrawled": 10,
  "averageScore": 72,
  "categoryAverages": {
    "metaTags": 78,
    "headings": 85,
    "content": 70,
    "technical": 80,
    "performance": 65,
    "links": 75,
    "images": 60,
    "accessibility": 70
  },
  "topIssues": [
    {
      "issue": "Missing alt text on images",
      "count": 8,
      "pages": ["https://example.com/page1", "https://example.com/page2"]
    }
  ],
  "distribution": {
    "excellent": 2,
    "good": 5,
    "needsImprovement": 2,
    "poor": 1
  },
  "crawlCoverage": {
    "pagesCrawled": 10,
    "indexable": 9,
    "nonIndexable": {
      "noindex": 1,
      "canonicalized": 0,
      "errors4xx": 0,
      "errors5xx": 0,
      "redirects": 0
    },
    "maxDepth": 3
  },
  "duplicateTitles": [
    {
      "title": "Example - Home Page",
      "count": 2,
      "pages": ["https://example.com/", "https://example.com/index"]
    }
  ]
}

Scoring

Scores are calculated on a 0-100 scale:

• 80-100: Excellent
• 60-79: Good
• 40-59: Needs Improvement
• 0-39: Poor

Each category has its own scoring algorithm based on SEO best practices.