Domain age & registration (RDAP) API

Registration details for a domain via RDAP (the modern WHOIS): registrar, creation/expiry dates, age, and status. Flags newly-registered domains (a phishing signal). Answers 'when was this domain registered', 'how old is this domain', 'who is the registrar', 'is this domain new'.

Price$0.01per request

MethodPOST

Route/v1/web/domain-info

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache3600s public

webdomainwhoisrdapregistrationagephishing

API URLhttps://x402.hexl.dev/v1/web/domain-info

Integration docs

Example request

{
  "domain": "example.com"
}

Example response

{
  "domain": "example.com",
  "registered": true,
  "registrar": "RESERVED-IANA",
  "createdAt": "1995-08-14T04:00:00Z",
  "expiresAt": "2026-08-13T04:00:00Z",
  "updatedAt": null,
  "ageDays": 11000,
  "status": [
    "active"
  ],
  "flags": []
}

Input schema

{
  "type": "object",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "examples": [
        "example.com"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "required": [
    "domain",
    "registered"
  ],
  "properties": {
    "domain": {
      "type": "string"
    },
    "registered": {
      "type": "boolean"
    },
    "registrar": {
      "type": [
        "string",
        "null"
      ]
    },
    "createdAt": {
      "type": [
        "string",
        "null"
      ]
    },
    "expiresAt": {
      "type": [
        "string",
        "null"
      ]
    },
    "updatedAt": {
      "type": [
        "string",
        "null"
      ]
    },
    "ageDays": {
      "type": [
        "number",
        "null"
      ]
    },
    "status": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "flags": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  }
}