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The Content Analysis API provides tools for finding duplicate content, extracting keywords, and analyzing keyword gaps.

​
Find Duplicate Content

This endpoint requires authentication.

​
POST /api/v1/content/duplicates

Detect duplicate or near-duplicate content across multiple pages.
​
pages
array
required
Array of page objects to analyze for duplicates
​
threshold
number
default:"0.85"
Similarity threshold (0.0 to 1.0). Higher values require closer matches.

​
Example Request

curl -X POST "https://api.example.com/api/v1/content/duplicates?threshold=0.85" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "pages": [
      {"url": "https://example.com/page1", "content": "..."},
      {"url": "https://example.com/page2", "content": "..."}
    ]
  }'

​
Example Response

{
  "duplicates": [
    {
      "url1": "https://example.com/page1",
      "url2": "https://example.com/page2",
      "similarity": 0.92,
      "type": "high"
    }
  ]
}

​
Extract Keywords

​
POST /api/v1/content/keywords/extract

Extract the most important keywords from HTML content.
​
html
string
required
HTML content to extract keywords from (can be passed in body or query)
​
top_n
integer
default:"50"
Number of top keywords to return (1-200)

​
Example Request

curl -X POST "https://api.example.com/api/v1/content/keywords/extract?top_n=20" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "html": "<h1>SEO Guide</h1><p>Learn about search engine optimization...</p>"
  }'

​
Example Response

{
  "keywords": [
    {"keyword": "SEO", "score": 0.95, "frequency": 12},
    {"keyword": "search engine optimization", "score": 0.88, "frequency": 5},
    {"keyword": "ranking", "score": 0.76, "frequency": 8}
  ]
}

​
Analyze Keyword Gap

​
POST /api/v1/content/keywords/gap

Identify keyword opportunities by comparing your keywords against competitors.
​
your_keywords
array
required
Array of your keyword objects with scores
​
competitor_keywords
array
required
Array of competitor keyword objects with scores

​
Example Request

curl -X POST https://api.example.com/api/v1/content/keywords/gap \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "your_keywords": [
      {"keyword": "SEO", "score": 0.8}
    ],
    "competitor_keywords": [
      {"keyword": "SEO", "score": 0.9},
      {"keyword": "link building", "score": 0.85}
    ]
  }'

​
Example Response

{
  "gaps": [
    {
      "keyword": "link building",
      "competitor_score": 0.85,
      "your_score": 0,
      "opportunity": "high"
    }
  ],
  "shared": [
    {
      "keyword": "SEO",
      "your_score": 0.8,
      "competitor_score": 0.9,
      "gap": 0.1
    }
  ]
}

​
Compare Keywords Between URLs

​
GET /api/v1/content/keywords/compare

Directly compare keywords between two URLs by crawling and analyzing them.
​
your_url
string
required
Your URL to analyze
​
competitor_url
string
required
Competitor URL to compare against

​
Example Request

curl -X GET "https://api.example.com/api/v1/content/keywords/compare?your_url=https://example.com&competitor_url=https://competitor.com" \
  -H "Authorization: Bearer YOUR_TOKEN"
The compare endpoint crawls external URLs, which may take several seconds. Ensure both URLs are publicly accessible.

​
Error Codes

CodeDescription
401Missing or invalid authentication token
422Invalid parameters (e.g., top_n out of range, missing html)
500Internal server error

​
Use Cases

​
Content Audit

  1. Duplicate Detection: Find and consolidate duplicate content to avoid SEO penalties
  2. Keyword Extraction: Identify the main topics and keywords on each page
  3. Gap Analysis: Discover keyword opportunities by comparing with competitors

​
SEO Optimization

// Example workflow
const optimizeContent = async (pages) => {
  // 1. Find duplicates
  const duplicates = await findDuplicates(pages);
  
  // 2. Extract keywords from top pages
  const keywords = await extractKeywords(pages[0].html);
  
  // 3. Compare with competitors
  const gaps = await analyzeKeywordGap(keywords, competitorKeywords);
  
  return { duplicates, keywords, gaps };
};

​
Next Steps

Content Editor

Optimize content for target keywords

Keywords API

Keyword research and suggestions

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