Complete SEO Audit Tool - Comprehensive Website SEO Analysis

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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.