Keyword Gap Analysis

Find keywords that your competitors rank for but your domain doesn't — the classic SEO content-gap analysis. Compare your domain against up to 5 competitors.

Request body:

• domain — your domain to analyze
• competitors — array of 1–5 competitor domains
• location_id — location for the analysis
• page — optional pagination parameter (Premium and Agency plans only)

The response is sorted by opportunity — keywords where every competitor ranks and you don't appear first. Each keyword includes search volume, keyword difficulty, CPC and the ranking URL of each competitor for that keyword.

Limits

Counts toward your Keyword lookups limit. Identical requests within 24 hours are reused from cache.

curl -X POST "https://api.mangools.com/v3/kwfinder/gap-analysis" \  -H "Content-Type: application/json" \  -d '{    "domain": "mangools.com",    "competitors": [      "ahrefs.com",      "semrush.com"    ],    "location_id": 2840  }'

{
  "isAllowedPagination": true,
  "page": 1,
  "resultsSize": 1000,
  "results": [
    {
      "domain": "ahrefs.com",
      "total_count": 5432,
      "items": [
        {
          "keyword": "backlink checker",
          "search_volume": 12100,
          "cpc": 5.24,
          "competition": 0.85,
          "competitor_position": 3,
          "your_position": null
        }
      ]
    }
  ]
}

{
  "error": {
    "type": "AuthError",
    "message": "Invalid API Key"
  }
}

{
  "error": {
    "type": "RateLimit",
    "message": "Not enough limits 2"
  }
}