Daily Discovered Subdomains

GEThttps://api.deepinfo.com/v1/feeds/daily-discovered-subdomains

Subdomains discovered in the last day.

Example

Request

curl

curl 'https://api.deepinfo.com/v1/feeds/daily-discovered-subdomains?file_format=json' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json'

Python

import requests

url = "https://api.deepinfo.com/v1/feeds/daily-discovered-subdomains"

params = {
    "file_format": "json"
}

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/feeds/daily-discovered-subdomains?file_format=json";

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/feeds/daily-discovered-subdomains?file_format=json", 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/feeds/daily-discovered-subdomains?file_format=json"))
            .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/feeds/daily-discovered-subdomains?file_format=json");
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/feeds/daily-discovered-subdomains?file_format=json',
    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/feeds/daily-discovered-subdomains?file_format=json')

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

Response Body

{
  "download_url": "https://storage.googleapis.com/dif-sd-ddis-1002/latest/daily_discovered_subdomain_2026092210.json.gz?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=<credential>&X-Amz-Date=20260922T154519Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=<signature>",
  "file_format": "json",
  "file_size": 185009204,
  "file_update_time": "2026-09-22T10:00:00Z",
  "line_count": 2700865
}

Content-Type: application/json
deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a

Request

curl

curl 'https://api.deepinfo.com/v1/feeds/daily-discovered-subdomains?file_format=invalid_value' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json'

Python

import requests

url = "https://api.deepinfo.com/v1/feeds/daily-discovered-subdomains"

params = {
    "file_format": "invalid_value"
}

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/feeds/daily-discovered-subdomains?file_format=invalid_value";

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/feeds/daily-discovered-subdomains?file_format=invalid_value", 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/feeds/daily-discovered-subdomains?file_format=invalid_value"))
            .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/feeds/daily-discovered-subdomains?file_format=invalid_value");
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/feeds/daily-discovered-subdomains?file_format=invalid_value',
    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/feeds/daily-discovered-subdomains?file_format=invalid_value')

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

400 Bad Request · application/json

Response Body

{
  "code": 10400,
  "parameters": [
    {
      "param": "file_format",
      "details": [
        "Select a valid choice."
      ]
    }
  ],
  "solution": "https://docs.deepinfo.com/reference/"
}

Content-Type: application/json
deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a

Authentication

Send your API key in the apikey request header.

Query Parameters

Parameter	Required	Description
`file_format`	Optional	One of: `csv`, `json`. Example`json`

Response Fields

Field	Type	Description
`download_url`	string	uri
`file_format`	string	One of `csv`, `json`
`file_size`	integer
`file_update_time`	string	date-time
`line_count`	integer

Response Schema

Inferred from examples Built from the saved 2xx example response: the fields it contains, with the types seen there. It is not a contract.

Field	Type	Example
`download_url`	string	`"https://storage.googleapis.com/dif-…"`
`file_format`	string	`"json"`
`file_size`	number	`185009204`
`file_update_time`	string	`"2026-09-22T10:00:00Z"`
`line_count`	number	`2700865`

Examples

Saved examples from the Deepinfo API. Selecting one loads it into the request and response panels.

Worked Examples

Worked examples of this endpoint, each on its own page with the exact request and the response it returns.

Daily Discovered Subdomains as JSONThe download link of the Daily Discovered Subdomains feed as JSON: 1,749,538 lines, 122.8 MB, updated September 23, 2026.
Daily Discovered Subdomains as CSVThe download link of the Daily Discovered Subdomains feed as CSV: 1,749,538 lines, 88.8 MB, updated September 23, 2026.
Daily Discovered Subdomains as ParquetThe download link of the Daily Discovered Subdomains feed as Parquet: 1,749,538 lines, 125.0 MB, updated September 23, 2026.

See all examples

Reference updated September 27, 2026