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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 1576 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 [615 Million Domains] $10,000 Details

Keyword: URLDEFENSE

Reverse Whois » KEYWORD [urldefense ]  { 20 domain names }


NumDomain NameRegistrarCreatedUpdatedExpiry
1urldefense.comMarkMonitor Inc.8 Sep 20177 Aug 20238 Sep 2025
2urldefense.bizMarkMonitor Inc.17 Apr 201420 Mar 202516 Apr 2027
3urldefense.infoMarkMonitor Inc.17 Apr 201421 Mar 202517 Apr 2027
4urldefense.netMarkMonitor Inc.17 Apr 201416 Mar 202517 Apr 2027
5urldefense.orgMarkMonitor Inc.17 Apr 201421 Mar 202517 Apr 2027
6urldefense.usMarkMonitor Inc.17 Apr 201420 Mar 202516 Apr 2027
7urldefense.xyzWest263 International Limited24 Nov 2020-24 Nov 2021
8urldefense.ccNameCheap, Inc.25 Mar 202126 Mar 202425 Mar 2025
9urldefense.co1API GmbH8 Oct 201913 Oct 20248 Oct 2025
10urldefense.zipGoogle, Inc.15 May 20235 May 202415 May 2025
11urldefense.appGoDaddy.com, LLC7 Sep 202322 Oct 20247 Sep 2025
12urldefense.onlineGoDaddy.com, LLC6 Mar 20247 Mar 20256 Mar 2026
13urldefense.cloudPorkbun, LLC31 Oct 202429 Nov 202431 Oct 2025
14urldefense.siteCloudFlare, Inc.13 Dec 202418 Dec 202413 Dec 2025
15urldefense.funTucows Domains Inc.30 Jan 202510 Mar 202530 Jan 2026
16urldefense.emailGoDaddy.com, LLC13 Feb 202518 Feb 202513 Feb 2027
17urldefenseproofpoint.comMarkMonitor Inc.4 Nov 20143 Oct 20234 Nov 2025
18urldefense-proofpoint.comGoDaddy.com, LLC17 Sep 201418 Sep 202417 Sep 2026
19urldefenses.netGoDaddy.com, LLC14 Sep 202113 Oct 202414 Sep 2025
20urldefenses.comGoDaddy.com, LLC14 Sep 202117 Mar 202514 Sep 2025

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=urldefense

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