Our database now contains whois records of 622 Million (622,314,388) domain names.
Login / Password / Signup
Low Price Guarantee

Whois API / Whois History / Reverse Whois

Our WHOIS API returns consistent and well-structured WHOIS data in XML & JSON format. Returned data contain parsed WHOIS fields that can be easily understood by your application. Along with WHOIS API, we also offer WHOIS History API and Reverse WHOIS API.

Powered by Amazon Web Services With support for 1577 TLDs, our cloud-based API lets you quickly access any domain's WHOIS data through Bulk Whois Lookup, Newly Registered Domains, Dropped Deleted Domains, Expiring Domains and Whois Database Download.
Our Services Price Order
1000 WHOIS Lookup API Queries $2 Details
1000 WHOIS History API Queries $5 Details
1000 Reverse WHOIS API Queries $10 Details
Newly Registered Domains Database $495 Details
Whois Database [622 Million Domains] $10,000 Details

Keyword: QUAD9

Reverse Whois » KEYWORD [quad9 ]  { 42 domain names }


NumDomain NameRegistrarCreatedUpdatedExpiry
1quad9.netKey-Systems GmbH25 May 201726 May 202525 May 2026
2quad9.comKey-Systems GmbH11 Aug 201312 Aug 202411 Aug 2025
3quad9.orgKey-Systems GmbH25 May 201725 May 202525 May 2026
4quad9.infoKey-Systems GmbH25 May 201725 May 202525 May 2026
5quad9.bizCronon AG11 Feb 202128 Mar 202511 Feb 2026
6quad9.xyzNameCheap, Inc.19 Jul 202129 Sep 202319 Jul 2023
7quad9.betDynadot, LLC28 Aug 202228 Aug 202228 Aug 2023
8quad9.coCommuniGal Communication Ltd.7 Oct 202212 Oct 20237 Oct 2023
9quad9.oneGoDaddy.com, LLC9 Nov 202210 Nov 20229 Nov 2023
10quad9.caWebnames.ca Inc.19 May 201529 Apr 202519 May 2026
11quad9.uk-17 Mar 202317 Mar 202317 Mar 2028
12quad9.cloudNameCheap, Inc.10 Apr 202316 Mar 202510 Apr 2026
13quad9.studioGoogle, Inc.12 Nov 20202 Nov 202412 Nov 2025
14quad9.fr-18 Sep 201918 Sep 202418 Sep 2025
15quad911.comGoDaddy.com, LLC31 Mar 201531 Mar 201531 Mar 2016
16quad9s.comSquarespace Domains LLC10 Apr 202510 Apr 202510 Apr 2027
17quad9zlab.comJapan Registry Services Co., Ltd.1 Apr 201623 Feb 20171 Apr 2018
18quad9dyne.comHosting Concepts B.V. dba Openprovider11 Mar 202211 Mar 202211 Mar 2023
19quad9designs.comTLDs LLC dba SRSplus13 Jan 200513 Jan 201713 Jan 2018
20quad9tech.comGoDaddy.com, LLC16 Jan 201716 Jan 201716 Jan 2019
21quad9aerialmedia.comGoDaddy.com, LLC5 Apr 201717 May 20255 Apr 2025
22quad9productions.comGoDaddy.com, LLC17 May 201717 May 201717 May 2018
23quad90.com1&1 Internet AG26 Jun 201726 Jun 201726 Jun 2018
24quad9imagery.comTucows Domains Inc.17 Jan 201821 Jan 202117 Jan 2021
25quad9sip.comGoDaddy.com, LLC5 Dec 20195 Dec 20195 Dec 2021
26quad9-dns.netGoDaddy.com, LLC10 Jan 202011 Jan 202510 Jan 2026
27quad9dns.netGoDaddy.com, LLC10 Jan 202011 Jan 202510 Jan 2026
28quad9nursery.comTucows Domains Inc.3 Sep 20217 Sep 20223 Sep 2023
29quad9dnsserver.comDynadot, LLC4 Sep 20224 Sep 20224 Sep 2023
30quad9cdn.comGoDaddy.com, LLC18 Apr 20243 May 202518 Apr 2026
31quad9crew.netRegister NV dba Register.eu26 Dec 20229 Mar 202426 Dec 2023
32quad9dns.comGoDaddy.com, LLC28 Nov 201729 Nov 202428 Nov 2025
33quad9staffing.comGoDaddy.com, LLC8 Feb 202321 Apr 20248 Feb 2024
34quad9-cdn.comGoDaddy.com, LLC23 Feb 20236 Apr 202523 Feb 2025
35quad9dns.orgGoDaddy.com, LLC10 Jan 202024 Feb 202510 Jan 2026
36quad9cdn.orgNamesilo, LLC25 Jun 202327 Aug 202425 Jun 2024
37quad9cdn.netAbove.com Pty Ltd.12 Sep 202412 Sep 202412 Sep 2025
38quad9-cdn.orgNamesilo, LLC29 Sep 202329 Sep 202429 Sep 2025
39quad9-cdn.netNamesilo, LLC29 Sep 202330 Sep 202429 Sep 2025
40quad9solutions.comNetwork Solutions, LLC23 Dec 20237 Mar 202523 Dec 2024
41quad9homeprotect.comNameKing.com Inc.9 Feb 20241 Apr 20259 Feb 2026
42quad99.netCloudFlare, Inc.16 Jan 202523 Jan 202516 Jan 2026

Reverse Whois Demo

Reverse Whois API

You can fetch the above results using our Reverse Whois API.

https://api.whoxy.com/?key=xxxxx&reverse=whois&keyword=quad9

Reverse Whois API lets you perform a comprehensive search on our database, to find domains owned by a company or person.
You just need to enter search terms such as the name, email or company, and you can find all the domains they ever owned.
If your search returns no results, you will NOT be charged any API queries. You are charged only on successful queries.

Sample Output: JSON SchemaXML SchemaJSON Live ResultsXML Live Results

Reverse Whois Pricing Total API Calls Price CPM Purchase
200 Reverse Whois API Queries 200 $2 $10.00 Order Now
1,000 Reverse Whois API Queries 1,000 $10 $10.00 Order Now
10,000 Reverse Whois API Queries 10,000 $100 $10.00 Order Now
50,000 Reverse Whois API Queries 50,000 $400 $8.00 Order Now
250,000 Reverse Whois API Queries 250,000 $1,500 $6.00 Order Now
1 Million Reverse Whois API Queries 1,000,000 $4,000 $4.00 Order Now
5 Million Reverse Whois API Queries 5,000,000 $10,000 $2.00 Order Now