Name Server Changes in WHOIS History

GEThttps://api.deepinfo.com/v1/analyze/whois-history

The WHOIS history of github.com: 14 versions; in mid-2020 its name servers moved from AWS and Dyn to AWS and NS1.

Param: domain
Value: github.com

Asks for the WHOIS history of github.com.

The API returns 14 versions (the first 10 are shown). The oldest shown, from June 2020, trace a name server migration within four weeks: AWS only (June 23), AWS plus Dyn (June 24), NS1, AWS and Dyn (July 18), and NS1 plus AWS (July 21), the set every later version keeps. The later versions differ mainly in their expiry dates, renewed every two years up to October 9, 2028.

Request

curl

curl 'https://api.deepinfo.com/v1/analyze/whois-history?domain=github.com' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json'

Python

import requests

url = "https://api.deepinfo.com/v1/analyze/whois-history"

params = {
    "domain": "github.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/analyze/whois-history?domain=github.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/analyze/whois-history?domain=github.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/analyze/whois-history?domain=github.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/analyze/whois-history?domain=github.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/analyze/whois-history?domain=github.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/analyze/whois-history?domain=github.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: items: 10 of 14 shown; [].check_dates: first 10 items

Response Body

[
  {
    "whois": {
      "check_date": "2026-09-24T06:27:11Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2026-09-07T09:22:52Z",
      "expiry_date": "2028-10-09T18:20:50Z",
      "registrar": "markmonitor inc.",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": null,
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "dns2.p08.nsone.net",
        "dns3.p08.nsone.net",
        "dns4.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2026-09-07T12:52:47Z",
      "2026-09-08T04:06:54Z",
      "2026-09-09T13:03:47Z",
      "2026-09-10T17:01:20Z",
      "2026-09-11T17:06:58Z",
      "2026-09-12T19:51:20Z",
      "2026-09-14T05:19:49Z",
      "2026-09-15T12:21:43Z",
      "2026-09-16T19:34:33Z",
      "2026-09-18T11:02:27Z"
    ]
  },
  {
    "whois": {
      "check_date": "2026-09-06T18:10:53Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2024-09-07T09:16:32Z",
      "expiry_date": "2026-10-09T18:20:50Z",
      "registrar": "markmonitor inc.",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": null,
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "dns2.p08.nsone.net",
        "dns3.p08.nsone.net",
        "dns4.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2025-09-17T02:34:54Z",
      "2025-10-12T20:00:26Z",
      "2026-01-14T14:52:18Z",
      "2026-03-07T06:31:46Z",
      "2026-03-28T03:07:16Z",
      "2026-03-30T18:51:52Z",
      "2026-04-08T19:48:28Z",
      "2026-04-28T20:45:17Z",
      "2026-04-30T01:26:16Z",
      "2026-04-30T20:00:28Z"
    ]
  },
  {
    "whois": {
      "check_date": "2025-03-10T16:28:53Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2024-09-07T09:16:32Z",
      "expiry_date": "2026-10-09T18:20:50Z",
      "registrar": "markmonitor inc.",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": "ca",
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "dns2.p08.nsone.net",
        "dns3.p08.nsone.net",
        "dns4.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2024-09-09T22:24:17Z",
      "2024-11-08T09:16:33Z",
      "2024-12-11T11:35:53Z",
      "2025-01-16T11:51:01Z",
      "2025-03-10T16:28:53Z"
    ]
  },
  {
    "whois": {
      "check_date": "2024-07-27T01:47:49Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2022-09-07T09:10:44Z",
      "expiry_date": "2024-10-09T18:20:50Z",
      "registrar": "markmonitor inc.",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": "ca",
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "dns2.p08.nsone.net",
        "dns3.p08.nsone.net",
        "dns4.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2023-02-23T15:47:35Z",
      "2023-02-23T18:46:24Z",
      "2023-02-24T03:56:57Z",
      "2023-02-24T14:45:36Z",
      "2023-02-25T00:57:03Z",
      "2023-02-25T11:35:10Z",
      "2023-02-26T06:54:00Z",
      "2023-02-26T12:17:54Z",
      "2023-02-26T19:47:59Z",
      "2023-02-27T05:37:54Z"
    ]
  },
  {
    "whois": {
      "check_date": "2023-07-14T08:14:18Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2022-09-07T09:10:44Z",
      "expiry_date": "2024-10-09T18:20:50Z",
      "registrar": "markmonitor inc.",
      "registrant": {
        "name": null,
        "organization": null,
        "street": null,
        "city": null,
        "state": null,
        "postal_code": null,
        "country": null,
        "phone": null,
        "email": null
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "dns2.p08.nsone.net",
        "dns3.p08.nsone.net",
        "dns4.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2022-10-03T23:31:11Z",
      "2022-11-14T19:02:42Z",
      "2022-11-16T21:21:56Z",
      "2022-11-17T16:01:01Z",
      "2022-11-18T09:29:28Z",
      "2022-11-19T10:06:46Z",
      "2022-11-20T10:08:43Z",
      "2022-11-21T09:26:06Z",
      "2022-11-22T09:54:28Z",
      "2022-11-23T10:29:11Z"
    ]
  },
  {
    "whois": {
      "check_date": "2022-08-20T12:50:53Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2020-09-08T09:18:27Z",
      "expiry_date": "2022-10-09T18:20:50Z",
      "registrar": "markmonitor inc.",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": "ca",
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "dns2.p08.nsone.net",
        "dns3.p08.nsone.net",
        "dns4.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2020-09-25T14:45:19Z",
      "2020-10-09T17:00:32Z",
      "2020-10-11T04:21:37Z",
      "2020-10-15T12:04:17Z",
      "2020-10-19T08:52:32Z",
      "2020-10-24T23:31:42Z",
      "2021-01-03T21:07:13Z",
      "2021-01-09T06:11:54Z",
      "2021-01-19T17:23:04Z",
      "2021-03-07T00:20:43Z"
    ]
  },
  {
    "whois": {
      "check_date": "2020-07-21T13:10:25Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2020-07-20T22:28:24Z",
      "expiry_date": "2020-10-09T18:20:50Z",
      "registrar": "markmonitor",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": "ca",
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "dns2.p08.nsone.net",
        "dns3.p08.nsone.net",
        "dns4.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2020-07-21T13:10:25Z"
    ]
  },
  {
    "whois": {
      "check_date": "2020-07-18T12:01:51Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2020-07-17T23:03:47Z",
      "expiry_date": "2020-10-09T18:20:50Z",
      "registrar": "markmonitor",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": "ca",
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "dns1.p08.nsone.net",
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net",
        "ns2.p16.dynect.net",
        "ns3.p16.dynect.net",
        "ns4.p16.dynect.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2020-07-18T12:01:51Z"
    ]
  },
  {
    "whois": {
      "check_date": "2020-06-24T01:09:49Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2020-06-23T14:04:50Z",
      "expiry_date": "2020-10-09T18:20:50Z",
      "registrar": "markmonitor",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": "ca",
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net",
        "ns1.p16.dynect.net",
        "ns2.p16.dynect.net",
        "ns3.p16.dynect.net",
        "ns4.p16.dynect.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2020-06-24T01:09:49Z"
    ]
  },
  {
    "whois": {
      "check_date": "2020-06-23T12:42:17Z",
      "create_date": "2007-10-09T18:20:50Z",
      "update_date": "2020-06-22T19:26:23Z",
      "expiry_date": "2020-10-09T18:20:50Z",
      "registrar": "markmonitor",
      "registrant": {
        "name": "REDACTED FOR PRIVACY",
        "organization": "github, inc.",
        "street": null,
        "city": null,
        "state": "ca",
        "postal_code": null,
        "country": "us",
        "phone": null,
        "email": "REDACTED FOR PRIVACY"
      },
      "name_servers": [
        "ns-1283.awsdns-32.org",
        "ns-1707.awsdns-21.co.uk",
        "ns-421.awsdns-52.com",
        "ns-520.awsdns-01.net"
      ],
      "domain_status": [
        "clientdeleteprohibited",
        "clienttransferprohibited",
        "clientupdateprohibited"
      ],
      "whois_server": "whois.markmonitor.com"
    },
    "check_dates": [
      "2020-06-23T12:42:17Z"
    ]
  }
]

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 WHOIS History; the exact request is in the code panel.

Parameter	Value
`domain`query	`github.com`

Reference updated September 24, 2026

Request

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