Who it is for
Use focused checks for a single decision or assemble a broader profile when context matters.
What you get
Compare multiple domains side by side on various metrics including valuation, health, and SEO factors.
SynchronousRESTMCPSDK
Choose this product when
Choose this product when
Choose this to compare candidate domains using a consistent set of decision signals.
What you get
Compare multiple domains side by side on various metrics including valuation, health, and SEO factors.
Endpoints
Review the supported operations, inputs, outputs, execution modes, and response limits before integrating.
Credits and authentication
3 Authentication required. Check the operation reference for the exact cost and any per-item pricing.
Example operation
Use documented operations to collect, assess, enrich, verify, compare, protect, or monitor public evidence.
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
}
}Limits and evidence boundaries
Heuristic signals are useful for ranking or review but are not authoritative proof.
Partial means some requested items or components completed while others did not.
Cached indicates that stored evidence was used; review freshness metadata where provided.
Confidence describes evidence strength for the reported observation, not certainty about the real-world entity.
Reviewed 2026-08-22
Frequently asked questions
Where can I find the Domain Compare request and response reference?
Use the API reference for Domain Compare to review parameters, response fields, examples, status codes, and supported operation modes.
How should I interpret unknown or incomplete results from Domain Compare?
Unknown or partial results mean that the requested evidence could not be fully determined. Keep the result state, confidence, freshness, and limitations in downstream decisions.
How is Domain Compare priced?
Pricing depends on the operation and execution mode. Check the endpoint reference for the current credit cost, authentication requirement, and per-item rules.
