Domain Search Examples · Example 9 of 9 in Filters › Subdomain

Deeply Nested Subdomains

POSThttps://api.deepinfo.com/v1/discovery/domain-search

Field: subdomain_level_count
Operator: gte

Matches records whose subdomain_level_count is 3 or more.

The number of labels in front of the registrable domain: 0 for the domain itself, 1 for www.acme.example.

In the response, look at results[].subdomain_level_count.

Request

curl

curl -X POST 'https://api.deepinfo.com/v1/discovery/domain-search?page_size=25' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json' \
  -H 'Content-Type: application/json' \
  -d '{
  "filters": {
    "must": [
      {
        "name": "subdomain_level_count",
        "type": "gte",
        "value": 3
      }
    ]
  }
}'

Python

import requests

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

params = {
    "page_size": "25"
}

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

payload = {
    "filters": {
        "must": [
            {
                "name": "subdomain_level_count",
                "type": "gte",
                "value": 3
            }
        ]
    }
}

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

JavaScript

const url = "https://api.deepinfo.com/v1/discovery/domain-search?page_size=25";

const response = await fetch(url, {
  method: "POST",
  headers: {
    "apikey": "YOUR_API_KEY",
    "Accept": "application/json",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    filters: {
      must: [
        {
          name: "subdomain_level_count",
          type: "gte",
          value: 3
        }
      ]
    }
  }),
});

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

package main

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

func main() {
	payload := strings.NewReader(`{
  "filters": {
    "must": [
      {
        "name": "subdomain_level_count",
        "type": "gte",
        "value": 3
      }
    ]
  }
}`)

	req, err := http.NewRequest("POST", "https://api.deepinfo.com/v1/discovery/domain-search?page_size=25", payload)
	if err != nil {
		panic(err)
	}
	req.Header.Set("apikey", "YOUR_API_KEY")
	req.Header.Set("Accept", "application/json")
	req.Header.Set("Content-Type", "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 {
        String body = """
            {
              "filters": {
                "must": [
                  {
                    "name": "subdomain_level_count",
                    "type": "gte",
                    "value": 3
                  }
                ]
              }
            }""";

        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.deepinfo.com/v1/discovery/domain-search?page_size=25"))
            .header("apikey", "YOUR_API_KEY")
            .header("Accept", "application/json")
            .header("Content-Type", "application/json")
            .POST(HttpRequest.BodyPublishers.ofString(body))
            .build();

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

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

using System;
using System.Net.Http;
using System.Text;

using var client = new HttpClient();

var body = """
    {
      "filters": {
        "must": [
          {
            "name": "subdomain_level_count",
            "type": "gte",
            "value": 3
          }
        ]
      }
    }
    """;

var request = new HttpRequestMessage(HttpMethod.Post, "https://api.deepinfo.com/v1/discovery/domain-search?page_size=25");
request.Headers.Add("apikey", "YOUR_API_KEY");
request.Headers.Add("Accept", "application/json");
request.Content = new StringContent(body, Encoding.UTF8, "application/json");

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

PHP

<?php

$body = <<<'JSON'
{
  "filters": {
    "must": [
      {
        "name": "subdomain_level_count",
        "type": "gte",
        "value": 3
      }
    ]
  }
}
JSON;

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => 'https://api.deepinfo.com/v1/discovery/domain-search?page_size=25',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => [
        'apikey: YOUR_API_KEY',
        'Accept: application/json',
        'Content-Type: application/json',
    ],
    CURLOPT_POSTFIELDS => $body,
]);

$response = curl_exec($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-search?page_size=25')

request = Net::HTTP::Post.new(uri)
request['apikey'] = 'YOUR_API_KEY'
request['Accept'] = 'application/json'
request['Content-Type'] = 'application/json'
request.body = <<~'JSON'.chomp
  {
    "filters": {
      "must": [
        {
          "name": "subdomain_level_count",
          "type": "gte",
          "value": 3
        }
      ]
    }
  }
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: results: 3 of 25 shown

Response Body

{
  "page": 1,
  "page_size": 25,
  "result_count": 225471620,
  "results": [
    {
      "punycode": "mcc.cior.chim.ulg.ac.be",
      "unicode": "mcc.cior.chim.ulg.ac.be",
      "is_idn": false,
      "subdomain": {
        "punycode": "mcc.cior.chim",
        "unicode": "mcc.cior.chim",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 11
      },
      "subdomain_last": {
        "punycode": "mcc",
        "unicode": "mcc",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 3
      },
      "subdomain_root": {
        "punycode": "chim",
        "unicode": "chim",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 4
      },
      "name": {
        "punycode": "mcc.cior.chim.ulg",
        "unicode": "mcc.cior.chim.ulg",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 14,
        "lang": "de",
        "keywords": [
          "mcc",
          "cior",
          "chimu",
          "lg"
        ],
        "keyword_count": 4,
        "latinized": [],
        "contains_confusable": false
      },
      "domain": {
        "punycode": "ulg.ac.be",
        "unicode": "ulg.ac.be",
        "is_idn": false,
        "name": {
          "punycode": "ulg",
          "unicode": "ulg",
          "is_idn": false,
          "contains_letter": true,
          "contains_number": false,
          "contains_hyphen": false,
          "length": 3,
          "lang": "fr",
          "keywords": [
            "ulg"
          ],
          "keyword_count": 1
        },
        "extension": {
          "punycode": "ac.be",
          "unicode": "ac.be",
          "is_idn": false
        },
        "extension_root": {
          "punycode": "be",
          "unicode": "be",
          "is_idn": false
        },
        "extension_sub": {
          "punycode": "ac",
          "unicode": "ac",
          "is_idn": false
        },
        "extension_type": 2,
        "reserved": false,
        "premium": null,
        "registered": false,
        "whois": null,
        "whois_normalized": null,
        "whois_last_check_date": "2026-05-11T21:24:32Z",
        "whois_create_date_historical": null,
        "whois_last_change_date": null,
        "whois_registrant_email_historical": null,
        "whois_privacy_enabled": null,
        "dns": {
          "a": {
            "update_date": "2026-09-02T02:08:18Z",
            "ip_addresses": [
              "139.165.51.107"
            ]
          }
        },
        "dns_last_change_date": "2026-09-02T02:08:36Z",
        "ip_history": null,
        "ssl": {
          "validity": {
            "start_date": "2026-08-03T15:47:06Z",
            "end_date": "2026-11-01T15:47:05Z"
          },
          "serial_number": "534209092364558559083795564115795383768026",
          "check_date": "2026-09-04T02:36:32Z"
        },
        "ssl_last_change_date": "2026-09-02T07:32:02Z"
      },
      "type": 2,
      "subdomain_level_count": 3,
      "dns": {
        "a": {
          "update_date": "2026-08-15T09:01:52Z",
          "ip_addresses": [
            "139.165.207.160"
          ]
        },
        "aaaa": {
          "update_date": "2026-08-15T09:01:52Z",
          "ip_addresses": []
        },
        "ns": {
          "update_date": "2026-08-15T09:01:52Z",
          "name_servers": []
        },
        "mx": {
          "update_date": "2026-08-15T09:01:52Z",
          "mail_servers": []
        },
        "soa": {
          "update_date": "2026-08-15T09:01:52Z",
          "mnames": [],
          "rnames": [],
          "rname_emails": []
        },
        "txt": {
          "update_date": "2026-08-15T09:01:52Z",
          "values": []
        },
        "cname": {
          "update_date": "2026-08-15T09:01:52Z",
          "values": []
        },
        "others": []
      },
      "dns_last_change_date": null,
      "ip_history": [
        "139.165.207.160"
      ],
      "ssl": null,
      "ssl_last_change_date": null,
      "webdata": {
        "connection_status": "timeout",
        "html": null,
        "http": null
      }
    },
    {
      "punycode": "49c35011f45f43ddb2c95de66fcbe363.int.eus.cc.arconazure.com",
      "unicode": "49c35011f45f43ddb2c95de66fcbe363.int.eus.cc.arconazure.com",
      "is_idn": false,
      "subdomain": {
        "punycode": "49c35011f45f43ddb2c95de66fcbe363.int.eus.cc",
        "unicode": "49c35011f45f43ddb2c95de66fcbe363.int.eus.cc",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": true,
        "contains_hyphen": false,
        "length": 40
      },
      "subdomain_last": {
        "punycode": "49c35011f45f43ddb2c95de66fcbe363",
        "unicode": "49c35011f45f43ddb2c95de66fcbe363",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": true,
        "contains_hyphen": false,
        "length": 32
      },
      "subdomain_root": {
        "punycode": "cc",
        "unicode": "cc",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 2
      },
      "name": {
        "punycode": "49c35011f45f43ddb2c95de66fcbe363.int.eus.cc.arconazure",
        "unicode": "49c35011f45f43ddb2c95de66fcbe363.int.eus.cc.arconazure",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": true,
        "contains_hyphen": false,
        "length": 50,
        "lang": "fr",
        "keywords": [
          "ddb",
          "de",
          "fcbe",
          "inte",
          "usc",
          "car",
          "con",
          "azure"
        ],
        "keyword_count": 8,
        "latinized": [],
        "contains_confusable": false
      },
      "domain": {
        "punycode": "arconazure.com",
        "unicode": "arconazure.com",
        "is_idn": false,
        "name": {
          "punycode": "arconazure",
          "unicode": "arconazure",
          "is_idn": false,
          "contains_letter": true,
          "contains_number": false,
          "contains_hyphen": false,
          "length": 10,
          "lang": "en",
          "keywords": [
            "arcon",
            "azure"
          ],
          "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": "2023-02-10T17:56:31Z",
          "update_date": "2026-01-11T23:12:29Z",
          "expiry_date": "2027-02-10T17:56:31Z",
          "registrar": "nom-iq ltd. dba com laude",
          "registrant": {
            "name": "redacted",
            "organization": "microsoft corporation",
            "street": "redacted",
            "city": "redacted",
            "state": "wa",
            "postal_code": "redacted",
            "country": "us",
            "phone": "redacted",
            "email": "user@anonymised.email"
          },
          "name_servers": [
            "ns1-34.azure-dns.com",
            "ns2-34.azure-dns.net",
            "ns3-34.azure-dns.org",
            "ns4-34.azure-dns.info"
          ],
          "domain_status": [
            "clientdeleteprohibited",
            "clienttransferprohibited",
            "clientupdateprohibited"
          ],
          "whois_server": "whois.comlaude.com",
          "check_date": "2026-08-29T18:57:53Z"
        },
        "whois_normalized": {
          "registrant": {
            "organization": "microsoftcorporation",
            "phone": null,
            "email": "user@anonymised.email",
            "email_fqdn_apex": "anonymised.email",
            "email_domain_apex": "anonymised.email"
          }
        },
        "whois_last_check_date": "2026-08-29T18:57:53Z",
        "whois_create_date_historical": null,
        "whois_last_change_date": "2026-08-29T19:01:04Z",
        "whois_registrant_email_historical": null,
        "whois_privacy_enabled": true,
        "dns": {
          "a": {
            "update_date": "2026-08-25T01:28:03Z",
            "ip_addresses": []
          }
        },
        "dns_last_change_date": "2025-09-21T06:11:26Z",
        "ip_history": null,
        "ssl": null,
        "ssl_last_change_date": null
      },
      "type": 2,
      "subdomain_level_count": 4,
      "dns": {
        "a": {
          "update_date": "2026-09-01T14:53:51Z",
          "ip_addresses": [
            "20.42.65.87"
          ]
        },
        "aaaa": {
          "update_date": "2026-09-01T14:53:51Z",
          "ip_addresses": []
        },
        "ns": {
          "update_date": "2026-09-01T14:53:51Z",
          "name_servers": []
        },
        "mx": {
          "update_date": "2026-09-01T14:53:51Z",
          "mail_servers": []
        },
        "soa": {
          "update_date": "2026-09-01T14:53:51Z",
          "mnames": [],
          "rnames": [],
          "rname_emails": []
        },
        "txt": {
          "update_date": "2026-09-01T14:53:51Z",
          "values": []
        },
        "cname": {
          "update_date": "2026-09-01T14:53:51Z",
          "values": [
            "dp.privatelink.eus.cc.arc.azure.net."
          ]
        },
        "others": []
      },
      "dns_last_change_date": "2026-09-02T23:04:19Z",
      "ip_history": [
        "20.42.65.87"
      ],
      "ssl": null,
      "ssl_last_change_date": null,
      "webdata": {
        "connection_status": "timeout",
        "html": null,
        "http": null
      }
    },
    {
      "punycode": "a1ea7b26cbb94654a6bcdf39eac88a1f.int.eus.cc.arconazure.com",
      "unicode": "a1ea7b26cbb94654a6bcdf39eac88a1f.int.eus.cc.arconazure.com",
      "is_idn": false,
      "subdomain": {
        "punycode": "a1ea7b26cbb94654a6bcdf39eac88a1f.int.eus.cc",
        "unicode": "a1ea7b26cbb94654a6bcdf39eac88a1f.int.eus.cc",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": true,
        "contains_hyphen": false,
        "length": 40
      },
      "subdomain_last": {
        "punycode": "a1ea7b26cbb94654a6bcdf39eac88a1f",
        "unicode": "a1ea7b26cbb94654a6bcdf39eac88a1f",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": true,
        "contains_hyphen": false,
        "length": 32
      },
      "subdomain_root": {
        "punycode": "cc",
        "unicode": "cc",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": false,
        "contains_hyphen": false,
        "length": 2
      },
      "name": {
        "punycode": "a1ea7b26cbb94654a6bcdf39eac88a1f.int.eus.cc.arconazure",
        "unicode": "a1ea7b26cbb94654a6bcdf39eac88a1f.int.eus.cc.arconazure",
        "is_idn": false,
        "contains_letter": true,
        "contains_number": true,
        "contains_hyphen": false,
        "length": 50,
        "lang": "en",
        "keywords": [
          "ea",
          "cbb",
          "bcdf",
          "eac",
          "finte",
          "usc",
          "car",
          "con",
          "azure"
        ],
        "keyword_count": 9,
        "latinized": [],
        "contains_confusable": false
      },
      "domain": {
        "punycode": "arconazure.com",
        "unicode": "arconazure.com",
        "is_idn": false,
        "name": {
          "punycode": "arconazure",
          "unicode": "arconazure",
          "is_idn": false,
          "contains_letter": true,
          "contains_number": false,
          "contains_hyphen": false,
          "length": 10,
          "lang": "en",
          "keywords": [
            "arcon",
            "azure"
          ],
          "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": "2023-02-10T17:56:31Z",
          "update_date": "2026-01-11T23:12:29Z",
          "expiry_date": "2027-02-10T17:56:31Z",
          "registrar": "nom-iq ltd. dba com laude",
          "registrant": {
            "name": "redacted",
            "organization": "microsoft corporation",
            "street": "redacted",
            "city": "redacted",
            "state": "wa",
            "postal_code": "redacted",
            "country": "us",
            "phone": "redacted",
            "email": "user@anonymised.email"
          },
          "name_servers": [
            "ns1-34.azure-dns.com",
            "ns2-34.azure-dns.net",
            "ns3-34.azure-dns.org",
            "ns4-34.azure-dns.info"
          ],
          "domain_status": [
            "clientdeleteprohibited",
            "clienttransferprohibited",
            "clientupdateprohibited"
          ],
          "whois_server": "whois.comlaude.com",
          "check_date": "2026-08-29T18:57:53Z"
        },
        "whois_normalized": {
          "registrant": {
            "organization": "microsoftcorporation",
            "phone": null,
            "email": "user@anonymised.email",
            "email_fqdn_apex": "anonymised.email",
            "email_domain_apex": "anonymised.email"
          }
        },
        "whois_last_check_date": "2026-08-29T18:57:53Z",
        "whois_create_date_historical": null,
        "whois_last_change_date": "2026-08-29T19:01:04Z",
        "whois_registrant_email_historical": null,
        "whois_privacy_enabled": true,
        "dns": {
          "a": {
            "update_date": "2026-08-25T01:28:03Z",
            "ip_addresses": []
          }
        },
        "dns_last_change_date": "2025-09-21T06:11:26Z",
        "ip_history": null,
        "ssl": null,
        "ssl_last_change_date": null
      },
      "type": 2,
      "subdomain_level_count": 4,
      "dns": {
        "a": {
          "update_date": "2026-08-31T23:44:04Z",
          "ip_addresses": [
            "20.42.65.87"
          ]
        },
        "aaaa": {
          "update_date": "2026-08-31T23:44:04Z",
          "ip_addresses": []
        },
        "ns": {
          "update_date": "2026-08-31T23:44:04Z",
          "name_servers": []
        },
        "mx": {
          "update_date": "2026-08-31T23:44:04Z",
          "mail_servers": []
        },
        "soa": {
          "update_date": "2026-08-31T23:44:04Z",
          "mnames": [],
          "rnames": [],
          "rname_emails": []
        },
        "txt": {
          "update_date": "2026-08-31T23:44:04Z",
          "values": []
        },
        "cname": {
          "update_date": "2026-08-31T23:44:04Z",
          "values": [
            "dp.privatelink.eus.cc.arc.azure.net."
          ]
        },
        "others": []
      },
      "dns_last_change_date": "2026-09-02T23:04:58Z",
      "ip_history": [
        "20.42.65.87"
      ],
      "ssl": null,
      "ssl_last_change_date": null,
      "webdata": {
        "connection_status": "timeout",
        "html": null,
        "http": null
      }
    }
  ]
}

Content-Type: application/json
ratelimit-limit: 1000
ratelimit-remaining: 998
ratelimit-reset: 1
x-ratelimit-limit-hour: 100000
x-ratelimit-limit-minute: 10000
x-ratelimit-limit-second: 1000
x-ratelimit-remaining-hour: 99971
x-ratelimit-remaining-minute: 9998
x-ratelimit-remaining-second: 998
deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a

Request

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

Parameter	Value
`page_size`query	`25`
`filters.must[0].name`body	`subdomain_level_count`
`filters.must[0].type`body	`gte`
`filters.must[0].value`body	`3`

Reference updated September 26, 2026

Request

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