A Subdomain

GEThttps://api.deepinfo.com/v1/discovery/domain-detail

The record of www.deepinfo.com: a subdomain (type: 2) with its own DNS, certificate and web data, and the WHOIS of deepinfo.com.

Param: domain
Value: www.deepinfo.com

Asks for the record of www.deepinfo.com. A subdomain has type: 2, subdomain_level_count: 1 and a subdomain object that describes its label (www).

DNS, SSL and web data are the subdomain’s own: its certificate is issued for www.deepinfo.com, and its DNS record has A addresses but no NS or MX. domain holds the registrable domain, deepinfo.com, with its WHOIS record: a subdomain has no WHOIS of its own.

In the response, look at type, subdomain, ssl.fqdns and domain.whois.registrar.

Request

curl

curl 'https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json'

Python

import requests

url = "https://api.deepinfo.com/v1/discovery/domain-detail"

params = {
    "domain": "www.deepinfo.com"
}

headers = {
    "apikey": "YOUR_API_KEY",
    "Accept": "application/json"
}

response = requests.get(url, params=params, headers=headers)
response.raise_for_status()
print(response.json())

JavaScript

const url = "https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com";

const response = await fetch(url, {
  method: "GET",
  headers: {
    "apikey": "YOUR_API_KEY",
    "Accept": "application/json"
  },
});

const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, err := http.NewRequest("GET", "https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("apikey", "YOUR_API_KEY")
	req.Header.Set("Accept", "application/json")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(body))
}

Java

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com"))
            .header("apikey", "YOUR_API_KEY")
            .header("Accept", "application/json")
            .GET()
            .build();

        HttpResponse<String> response = HttpClient.newHttpClient()
            .send(request, HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}

using System;
using System.Net.Http;

using var client = new HttpClient();

var request = new HttpRequestMessage(HttpMethod.Get, "https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com");
request.Headers.Add("apikey", "YOUR_API_KEY");
request.Headers.Add("Accept", "application/json");

using var response = await client.SendAsync(request);
Console.WriteLine(await response.Content.ReadAsStringAsync());

PHP

<?php

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => 'https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'apikey: YOUR_API_KEY',
        'Accept: application/json',
    ],
]);

$response = curl_exec($curl);

if ($response === false) {
    throw new RuntimeException(curl_error($curl));
}

echo $response . PHP_EOL;

Ruby

require 'net/http'
require 'uri'

uri = URI('https://api.deepinfo.com/v1/discovery/domain-detail?domain=www.deepinfo.com')

request = Net::HTTP::Get.new(uri)
request['apikey'] = 'YOUR_API_KEY'
request['Accept'] = 'application/json'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == 'https') do |http|
  http.request(request)
end

puts response.body

Response

200 OK · application/json

Shortened for this page: ip_history: 3 of 5 shown

Response Body

{
  "punycode": "www.deepinfo.com",
  "unicode": "www.deepinfo.com",
  "is_idn": false,
  "subdomain": {
    "punycode": "www",
    "unicode": "www",
    "is_idn": false,
    "contains_letter": true,
    "contains_number": false,
    "contains_hyphen": false,
    "length": 3
  },
  "subdomain_last": {
    "punycode": "www",
    "unicode": "www",
    "is_idn": false,
    "contains_letter": true,
    "contains_number": false,
    "contains_hyphen": false,
    "length": 3
  },
  "subdomain_root": {
    "punycode": "www",
    "unicode": "www",
    "is_idn": false,
    "contains_letter": true,
    "contains_number": false,
    "contains_hyphen": false,
    "length": 3
  },
  "name": {
    "punycode": "www.deepinfo",
    "unicode": "www.deepinfo",
    "is_idn": false,
    "contains_letter": true,
    "contains_number": false,
    "contains_hyphen": false,
    "length": 11,
    "lang": "en",
    "keywords": [
      "www",
      "deep",
      "info"
    ],
    "keyword_count": 3,
    "latinized": [],
    "contains_confusable": false
  },
  "domain": {
    "punycode": "deepinfo.com",
    "unicode": "deepinfo.com",
    "is_idn": false,
    "name": {
      "punycode": "deepinfo",
      "unicode": "deepinfo",
      "is_idn": false,
      "contains_letter": true,
      "contains_number": false,
      "contains_hyphen": false,
      "length": 8,
      "lang": "en",
      "keywords": [
        "deep",
        "info"
      ],
      "keyword_count": 2
    },
    "extension": {
      "punycode": "com",
      "unicode": "com",
      "is_idn": false
    },
    "extension_root": {
      "punycode": "com",
      "unicode": "com",
      "is_idn": false
    },
    "extension_sub": null,
    "extension_type": 1,
    "reserved": null,
    "premium": null,
    "registered": true,
    "whois": {
      "create_date": "2001-06-05T02:57:08Z",
      "update_date": "2025-08-19T07:33:45Z",
      "expiry_date": "2028-10-20T11:59:59Z",
      "registrar": "godaddy online services cayman islands ltd.",
      "registrant": {
        "name": null,
        "organization": null,
        "street": null,
        "city": null,
        "state": null,
        "postal_code": null,
        "country": null,
        "phone": null,
        "email": null
      },
      "name_servers": [
        "may.ns.cloudflare.com",
        "simon.ns.cloudflare.com"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clientrenewprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.uniregistrar.com",
      "check_date": "2026-08-10T21:24:49Z"
    },
    "whois_normalized": {
      "registrant": null
    },
    "whois_last_check_date": "2026-08-10T21:24:49Z",
    "whois_create_date_historical": null,
    "whois_last_change_date": "2026-08-10T21:01:51Z",
    "whois_registrant_email_historical": null,
    "whois_privacy_enabled": null,
    "dns": {
      "a": {
        "update_date": "2026-08-09T03:36:51Z",
        "ip_addresses": [
          "104.26.10.21",
          "104.26.11.21",
          "172.67.70.198"
        ]
      }
    },
    "dns_last_change_date": "2026-07-21T18:18:11Z",
    "ip_history": null,
    "ssl": {
      "validity": {
        "start_date": "2026-06-03T16:27:33Z",
        "end_date": "2026-09-01T17:27:27Z"
      },
      "serial_number": "61855234530828088905432121166750302202",
      "check_date": "2026-08-10T22:12:37Z"
    },
    "ssl_last_change_date": "2026-08-07T12:22:59Z"
  },
  "type": 2,
  "subdomain_level_count": 1,
  "dns": {
    "a": {
      "update_date": "2026-07-21T22:18:13Z",
      "ip_addresses": [
        "104.26.10.21",
        "104.26.11.21",
        "172.67.70.198"
      ]
    },
    "aaaa": {
      "update_date": "2026-07-21T22:18:13Z",
      "ip_addresses": [
        "2606:4700:20::681a:a15",
        "2606:4700:20::681a:b15",
        "2606:4700:20::ac43:46c6"
      ]
    },
    "ns": {
      "update_date": "2026-07-21T22:18:13Z",
      "name_servers": []
    },
    "mx": {
      "update_date": "2026-07-21T22:18:13Z",
      "mail_servers": []
    },
    "soa": {
      "update_date": "2026-07-21T22:18:13Z",
      "mnames": [],
      "rnames": [],
      "rname_emails": []
    },
    "txt": {
      "update_date": "2026-07-21T22:18:13Z",
      "values": []
    },
    "cname": {
      "update_date": "2026-07-21T22:18:13Z",
      "values": []
    },
    "others": [
      {
        "update_date": "2024-07-02T08:04:53Z",
        "values": [],
        "type": "DNSKEY"
      },
      {
        "update_date": "2024-07-02T08:04:53Z",
        "values": [],
        "type": "DS"
      },
      {
        "update_date": "2024-07-02T08:04:53Z",
        "values": [],
        "type": "SPF"
      },
      {
        "update_date": "2024-07-02T08:04:53Z",
        "values": [
          "\"RFC8482\" \"\""
        ],
        "type": "HINFO"
      }
    ]
  },
  "dns_last_change_date": "2024-06-14T08:09:28Z",
  "ip_history": [
    "104.21.29.10",
    "172.67.171.60",
    "104.26.10.21"
  ],
  "ssl": {
    "tags": [
      "dla"
    ],
    "fqdns": [
      "www.deepinfo.com"
    ],
    "version": 3,
    "serial_number": "189849484378123535728845751731277906435",
    "fingerprint": {
      "sha256": "9ee43ae2be46ddb49482c3ad47bceb2907175707b94aa1afb5978c91dcfb362a",
      "sha1": "f8f7a3b09df16fc23e3d9b34e062929c05d0dbf1",
      "md5": "88e2268e11595eced4f4291927572e72"
    },
    "validity": {
      "start_date": "2026-07-14T00:48:57Z",
      "end_date": "2026-10-12T01:48:52Z",
      "length": 7779595
    },
    "signature": {
      "is_self_signed": false,
      "is_valid": true,
      "value": "MEYCIQD+W/KyGw9ofgJOFy4/GMRG08/vlioVUr9ugAPEY6wK1AIhAIoo4AdZvUQgtg6ctg5l9ysj3WpEFPj68AFxG/+++Gky",
      "algorithm": {
        "oid": "1.2.840.10045.4.3.2",
        "name": "sha256"
      }
    },
    "issuer_dn": "CN=WE1,O=Google Trust Services,C=US",
    "issuer": {
      "common_name": "WE1",
      "country": "US",
      "state": null,
      "locality": null,
      "organization": "Google Trust Services",
      "organizational_unit": null
    },
    "subject_dn": "CN=www.deepinfo.com",
    "subject": {
      "common_name": "www.deepinfo.com",
      "country": null,
      "state": null,
      "locality": null,
      "organization": null,
      "organizational_unit": null
    },
    "extensions": {
      "authority_key_id": "kHeSNWfE/6jMqeZ72YB5e8yT+Tg=",
      "basic_constraints": {
        "is_ca": false
      },
      "certificate_policies": [
        "2.23.140.1.2.1"
      ],
      "extended_key_usage": {
        "client_auth": null,
        "server_auth": true
      },
      "key_usage": {
        "digital_signature": true,
        "content_commitment": false,
        "key_agreement": false,
        "data_encipherment": false,
        "key_encipherment": false,
        "key_cert_sign": false,
        "crl_sign": false
      },
      "signed_certificate_timestamps": [
        "2026-07-14T01:48:57Z"
      ],
      "subject_alt_name": {
        "dns_names": [
          "www.deepinfo.com"
        ]
      },
      "subject_key_id": "QtbFfIWsoUNLqOrTfWPHJn4pHH0="
    },
    "check_date": "2026-08-10T18:02:40Z"
  },
  "ssl_last_change_date": "2026-08-10T18:02:52Z",
  "webdata": {
    "connection_status": "success",
    "html": {
      "source_code_hash": "2af0b9caeed738a92675819833dc9d1d99fc03ac1bf94dc69ae15210e7a8a8ed"
    },
    "http": {
      "status_code_first": 301,
      "status_code_last": 200,
      "redirection_history": [
        {
          "url": "http://www.deepinfo.com/",
          "status_code": 301
        },
        {
          "url": "https://www.deepinfo.com/",
          "status_code": 200
        }
      ],
      "external_redirection": false,
      "final_url": "https://www.deepinfo.com/",
      "final_fqdn": "www.deepinfo.com",
      "final_domain": "deepinfo.com",
      "headers": {
        "others": [
          {
            "name": "date",
            "value": "Mon, 22 Jun 2026 04:06:01 GMT"
          },
          {
            "name": "transfer_encoding",
            "value": "chunked"
          },
          {
            "name": "connection",
            "value": "keep-alive"
          },
          {
            "name": "report_to",
            "value": "{\"group\":\"cf-nel\",\"max_age\":604800,\"endpoints\":[{\"url\":\"https://a.nel.cloudflare.com/report/v4?s=KNfCe7w56euwq6cXGZSz%2FK5et%2FvusCFASFuBeIiy4YDrIHS75WXOphOPVQ0TgYQgBUZFFW8Mddqffc71m649HUqN9w3%2Bz8R8X%2FOUM1DGrjDFhEBoY5qe53L%2BKbXf%2BVRNhoPf\"}]}"
          },
          {
            "name": "nel",
            "value": "{\"report_to\":\"cf-nel\",\"success_fraction\":0.0,\"max_age\":604800}"
          },
          {
            "name": "link",
            "value": "<https://fonts.googleapis.com>; rel=\"preconnect\""
          },
          {
            "name": "permissions_policy",
            "value": "camera=(), microphone=(), geolocation=(), payment=(), interest-cohort=()"
          },
          {
            "name": "vary",
            "value": "accept-encoding"
          },
          {
            "name": "cf_cache_status",
            "value": "DYNAMIC"
          },
          {
            "name": "cf_ray",
            "value": "a0f860c0ad9a80ba-ORD"
          }
        ],
        "access_control_allow_headers": null,
        "access_control_allow_methods": null,
        "access_control_allow_origin": "*",
        "cache_control": "public, max-age=0, must-revalidate",
        "clear_site_data": null,
        "content_encoding": "gzip",
        "content_security_policy": "default-src 'self'; script-src 'self' https://cdn.jsdelivr.net https://static.cloudflareinsights.com https://widget.intercom.io https://*.intercomcdn.com 'unsafe-inline'; style-src 'self' https://fonts.googleapis.com https://*.intercomcdn.com 'unsafe-inline'; font-src 'self' https://fonts.gstatic.com https://*.intercomcdn.com; img-src 'self' data: https:; connect-src 'self' https://static.cloudflareinsights.com https://*.intercom.io wss://*.intercom.io https://*.intercomcdn.com; frame-ancestors 'none'",
        "content_type": "text/html; charset=utf-8",
        "cross_origin_embedder_policy": null,
        "cross_origin_opener_policy": null,
        "cross_origin_resource_policy": null,
        "expect_ct": null,
        "feature_policy": null,
        "last_modified": null,
        "permission_policy": null,
        "referrer_policy": "strict-origin-when-cross-origin",
        "server": "cloudflare",
        "set_cookie": null,
        "strict_transport_security": "max-age=31536000; includeSubDomains; preload",
        "x_content_type_options": "nosniff",
        "x_download_options": null,
        "x_frame_options": "DENY",
        "x_permitted_cross_domain_policies": null,
        "x_powered_by": null,
        "x_xss_protection": null
      },
      "cookies": []
    }
  }
}

Content-Type: application/json
ratelimit-limit: 2
ratelimit-remaining: 1
ratelimit-reset: 1
x-ratelimit-limit-second: 2
x-ratelimit-remaining-second: 1
deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a

Request

What this example sends. Every parameter is documented on Domain Detail; the exact request is in the code panel.

Parameter	Value
`domain`query	`www.deepinfo.com`

Reference updated September 26, 2026

Request

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