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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 1595 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 [670 Million Domains] $10,000 Details

Keyword: PROTONCAPITAL

Reverse Whois » KEYWORD [protoncapital ]  { 18 domain names }


NumDomain NameRegistrarCreatedUpdatedExpiry
1protoncapital.bizGoDaddy.com, LLC16 Jan 201013 Aug 201615 Jan 2020
2protoncapital.comGoDaddy.com, LLC24 Feb 200629 Aug 202524 Feb 2027
3protoncapital.infoNameCheap, Inc.29 Sep 2025--
4protoncapital.mobiGoDaddy.com, LLC16 Jan 201017 Jan 201516 Jan 2020
5protoncapital.netGoDaddy.com, LLC21 Oct 202521 Oct 202521 Oct 2026
6protoncapital.orgGoDaddy.com, LLC22 Feb 201718 Jul 202422 Feb 2027
7protoncapital.ru-14 Jul 2021-14 Jul 2026
8protoncapital.xyzGMO Internet Inc.24 Mar 202529 Mar 202524 Mar 2026
9protoncapital.proNameCheap, Inc.12 Sep 2025--
10protoncapitalmarkets.comNameKing.com Inc.20 Jul 202520 Jul 202520 Jul 2026
11protoncapitalasia.comName.com, Inc.1 Mar 201813 Apr 20251 Mar 2025
12protoncapitalinvest.comNetwork Solutions, LLC13 Jul 201813 Jul 201813 Jul 2019
13protoncapitalmarket.comName.com, Inc.28 Sep 201910 Nov 202528 Sep 2025
14protoncapitals.comName.com, Inc.1 Jul 20251 Jul 20251 Jul 2026
15protoncapitalmarkets.orgCronon AG20 Sep 202220 Sep 202220 Sep 2023
16protoncapitalmarkets.icuNameCheap, Inc.18 Feb 20258 Jun 202518 Feb 2026
17protoncapitals.proName.com, Inc.2 Jul 20257 Jul 20252 Jul 2026
18protoncapitalventures.comNameCheap, Inc.15 Sep 202515 Sep 202515 Sep 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=protoncapital

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