All Subdomains Feed Examples · Example 2 of 3

All Subdomains as CSV

GEThttps://api.deepinfo.com/v1/feeds/all-subdomains

The download link of the All Subdomains feed as CSV: 843,822,487 lines, 53.3 GB, updated January 4, 2024.

Param: file_format
Value: csv

Asks for the All Subdomains file in CSV (file_format=csv).

The current file, all_subdomains_202401.csv.gz, has 843,822,487 lines (one per subdomain) and is 53.3 GB (file_size 53,325,635,252); it was last updated on January 4, 2024. The Parquet file of this feed is newer (May 5, 2026, 1,452,864,429 lines).

Download the file from download_url within the hour; after that, request a new link.

Request

curl

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

Python

import requests

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

params = {
    "file_format": "csv"
}

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/all-subdomains?file_format=csv";

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/all-subdomains?file_format=csv", 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/all-subdomains?file_format=csv"))
            .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/all-subdomains?file_format=csv");
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/all-subdomains?file_format=csv',
    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/all-subdomains?file_format=csv')

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-a-ds-1002/subdomain/latest/all_subdomains_202401.csv.gz?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=<redacted>&X-Amz-Date=20260924T074947Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=<redacted>",
  "file_format": "csv",
  "file_size": 53325635252,
  "file_update_time": "2024-01-04T10:00:00Z",
  "line_count": 843822487
}

Content-Type: application/json
ratelimit-limit: 1
ratelimit-remaining: 0
ratelimit-reset: 1
x-ratelimit-limit-second: 1
x-ratelimit-remaining-second: 0
deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a

Request

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

Parameter	Value
`file_format`query	`csv`

Reference updated September 24, 2026

Request

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