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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 1594 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 [637 Million Domains] $10,000 Details

Keyword: CHECKUSER

Reverse Whois » KEYWORD [checkuser ]  { 52 domain names }


NumDomain NameRegistrarCreatedUpdatedExpiry
1checkuser.comName.com, Inc.5 Apr 200416 May 20255 Apr 2026
2checkuser.netP.A. Viet Nam Company Limited4 Mar 20248 Apr 20254 Mar 2025
3checkuser.infoNhan Hoa Software Company Ltd6 Jun 20226 Jun 20236 Jun 2024
4checkuser.hostName.com, Inc.14 Nov 202014 Nov 202014 Nov 2021
5checkuser.downloadName.com, Inc.14 Nov 202027 Dec 202114 Nov 2021
6checkuser.siteNameCheap, Inc.16 Sep 202424 Sep 202416 Sep 2025
7checkuser.supportName.com, Inc.14 Nov 202014 Nov 202014 Nov 2021
8checkuser.orgNameCheap, Inc.7 Jun 201813 May 20257 Jun 2026
9checkuser.nameNameCheap, Inc.---
10checkuser.onlineNameCheap, Inc.2 Feb 20253 Mar 20252 Feb 2026
11checkuser.ru-30 Nov 2020-30 Nov 2025
12checkuser.websiteHostinger, UAB13 Nov 202418 Nov 202413 Nov 2025
13checkusernames.comNameCheap, Inc.26 Feb 200926 Feb 202426 Feb 2026
14checkusername.infoCrazy Domains FZ-LLC6 Sep 2014-6 Sep 2015
15checkusernamez.netGoDaddy.com, LLC21 Oct 201521 Oct 201521 Oct 2016
16checkusernamez.infoGoDaddy.com, LLC21 Oct 2015-21 Oct 2016
17checkusernamez.comDropCatch.com 910 LLC7 Jan 201716 Feb 20187 Jan 2019
18checkusernames.netCommuniGal Communication Ltd.30 Nov 202330 Nov 202430 Nov 2024
19checkusernames.infoGoDaddy.com, LLC26 Jul 201726 Jul 201726 Jul 2018
20checkusernamez.orgGoDaddy.com, LLC21 Oct 201521 Oct 201521 Oct 2016
21checkusernames.orgGoDaddy.com, LLC26 Jul 201726 Jul 201726 Jul 2018
22checkusers.comGoDaddy.com, LLC26 Dec 200624 Jan 202526 Dec 2026
23checkusername.com-26 Aug 202527 Aug 202526 Aug 2026
24checkusers.netNameCheap, Inc.15 Oct 202227 Dec 202315 Oct 2023
25checkuserarea.com1&1 Internet AG8 Dec 20178 Dec 20178 Dec 2018
26checkuserlimit.com1&1 Internet AG6 May 20186 May 20186 May 2019
27checkuserinfo.store1&1 Internet AG6 May 20187 May 20186 May 2019
28checkuserinfo.comNameCheap, Inc.31 May 202312 Jul 202431 May 2024
29checkuserlimit.store1&1 Internet AG6 May 20187 May 20186 May 2019
30checkuserinfo.tips1&1 Internet AG7 May 20187 May 20187 May 2019
31checkuseractivity.comTucows Domains Inc.10 Nov 201910 Nov 201910 Nov 2020
32checkuserregistered.infoNamesilo, LLC17 Sep 202017 Sep 202017 Sep 2021
33checkuserfor.xyzNamesilo, LLC19 Feb 202111 Mar 202119 Feb 2023
34checkusersnames.comGoDaddy.com, LLC15 Nov 202315 Nov 202315 Nov 2024
35checkusersname.comGoDaddy.com, LLC13 Mar 202424 Apr 202513 Mar 2025
36checkuserinformation.siteGMO Internet Inc.26 Mar 202427 Mar 202526 Mar 2026
37checkuserstest.comNameCheap, Inc.4 Jul 202429 Jun 20254 Jul 2026
38checkuserportals.cfdNamesilo, LLC16 Sep 202427 Sep 202416 Sep 2025
39checkuser-complaint-pages.onlineHostinger, UAB1 Oct 20246 Oct 20241 Oct 2025
40checkuser-complaint-pages.websiteHostinger, UAB1 Oct 20246 Oct 20241 Oct 2025
41checkuserlock.comNameCheap, Inc.4 Oct 20244 Oct 20244 Oct 2025
42checkuser-inquiry-handling-teams.websiteHostinger, UAB1 Nov 20246 Nov 20241 Nov 2025
43checkuser-complaint-ig.com-21 Nov 202421 Nov 202421 Nov 2025
44checkuser-complaint-insta.comGransy s.r.o. d/b/a subreg.cz21 Nov 202421 Nov 202421 Nov 2025
45checkuser-inquiry-handling-teams.comGransy s.r.o. d/b/a subreg.cz25 Nov 202425 Nov 202425 Nov 2025
46checkusertests.comNameCheap, Inc.18 Dec 202418 Dec 202418 Dec 2025
47checkuser-enquiry-handling-teams.onlineHostinger, UAB26 Dec 202431 Dec 202426 Dec 2025
48checkuserseverdday.cloudWeb Commerce Communications Limited dba WebNic.cc20 Apr 202525 Apr 202520 Apr 2026
49checkuser-unverified-policy.cfdGransy s.r.o. d/b/a subreg.cz5 Jun 20251 Aug 20255 Jun 2026
50checkusernamess.comGandi SAS24 Jun 202524 Jun 202524 Jun 2026
51checkusers.onlineNameCheap, Inc.4 Aug 20254 Aug 20254 Aug 2026
52checkuservintellier.comHostinger, UAB14 Aug 202514 Aug 202514 Aug 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=checkuser

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