Domain Compare API reference

Operations

GET /v1/compare View API reference

GET `/v1/compare`

Operation: compareDomains Credits and authentication: 3 Authentication required

GET /v1/compare

Query Parameters

Parameter	Type	required
domains	string	required

Response Fields

Field	Type
`domains[]`	object[]
`domains[]`	object
`domains[].domain`	string
`domains[].tld`	string
`domains[].available`	boolean
`domains[].registered_at`	string \| null
`domains[].expires_at`	string \| null
`domains[].valuation`	object
`domains[].valuation.estimate_usd`	number
`domains[].valuation.confidence`	number
`domains[].valuation.estimate`	object
`domains[].valuation.estimate.low`	number
`domains[].valuation.estimate.mid`	number
`domains[].valuation.estimate.high`	number
`domains[].valuation.estimate.currency`	string
`domains[].valuation.analysis`	object
`domains[].valuation.analysis.scope`	string
`domains[].valuation.analysis.range_source`	string
`domains[].valuation.analysis.range_width`	string
`domains[].valuation.analysis.confidence_label`	string
`domains[].valuation.analysis.out_of_distribution`	boolean
`domains[].valuation.analysis.out_of_distribution_reasons[]`	string[]
`domains[].valuation.analysis.positive_factors[]`	string[]
`domains[].valuation.analysis.negative_factors[]`	string[]
`domains[].score`	object
`domains[].score.overall`	number
`domains[].score.length`	number
`domains[].score.pronounceability`	number
`domains[].score.memorability`	number
`domains[].score.brandability`	number
`domains[].tld_info`	object
`domains[].tld_info.type`	string
`domains[].tld_info.trust_tier`	string
`domains[].tld_info.popularity_rank`	integer \| null
`domains[].recommendation_rank`	integer \| null
`domains[].recommendation_reason`	string \| null
`recommendation`	object
`recommendation.best_available`	string \| null
`recommendation.best_overall`	string \| null
`recommendation.best_value`	string \| null
`recommendation.reasoning`	string
`decision_summary`	object
`decision_summary.compared_count`	integer
`decision_summary.best_overall`	string \| null
`decision_summary.best_available`	string \| null
`decision_summary.runner_up`	string \| null
`decision_summary.rank_margin`	integer \| null
`decision_summary.score_margin`	integer \| null
`decision_summary.value_margin_usd`	number \| null
`decision_summary.availability_used`	boolean
`decision_summary.winning_factor`	string \| null
`decision_summary.tie_breaker`	string \| null
`meta`	object
`meta.compared_count`	integer
`meta.available_count`	integer
`meta.total_ms`	integer

Example Request

curl -H "X-API-Key: $DOMSCAN_API_KEY" "https://domscan.net/v1/compare?domains=startup.com%2Cstartup.io%2Cstartup.ai"

Example Response

{
  "domains": [
    {
      "domain": "startup.io",
      "tld": "io",
      "available": true,
      "valuation": {
        "estimate_usd": 2500,
        "confidence": 0.7,
        "estimate": {
          "low": 1400,
          "mid": 2500,
          "high": 4100,
          "currency": "USD"
        },
        "analysis": {
          "scope": "intrinsic_domain_value",
          "range_source": "anchored",
          "range_width": "moderate",
          "confidence_label": "medium",
          "out_of_distribution": false,
          "out_of_distribution_reasons": [],
          "positive_factors": [
            "Strong .IO aftermarket demand"
          ],
          "negative_factors": [
            "Narrower buyer pool than .com"
          ]
        }
      },
      "score": {
        "overall": 85,
        "brandability": 90
      },
      "tld_info": {
        "type": "ccTLD",
        "trust_tier": "premium",
        "popularity_rank": 4
      },
      "recommendation_rank": 85,
      "recommendation_reason": "available for registration, premium .io TLD, excellent brand score"
    }
  ],
  "recommendation": {
    "best_available": "startup.io",
    "best_overall": "startup.com",
    "best_value": "startup.ai",
    "reasoning": "startup.io is recommended: available for registration, premium .io TLD, excellent brand score"
  },
  "decision_summary": {
    "compared_count": 3,
    "best_overall": "startup.com",
    "best_available": "startup.io",
    "runner_up": "startup.io",
    "rank_margin": 4,
    "score_margin": 2,
    "value_margin_usd": 1500,
    "availability_used": true,
    "winning_factor": "valuation",
    "tie_breaker": "higher_valuation"
  },
  "meta": {
    "compared_count": 3,
    "available_count": 2,
    "total_ms": 84
  }
}

Reference resources

OpenAPI 3.0 Postman MCP