With support for 
Reverse Whois
Simply enter a search term below to see the list of domain names owned by them.
Reverse Whois API
Search our entire WHOIS database through the Reverse Whois API.
https://api.whoxy.com/?key=xxxxx&reverse=whois&identifier=value
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 Schema • XML Schema • JSON Live Results • XML Live Results
Search Identifiers
You must send any one of following search identifiers to search the whois database.
Search by Domain Owner's Name:
https://api.whoxy.com/?key=xxxxx&reverse=whois&name=John+Smith
Search by Email Address:
https://api.whoxy.com/?key=xxxxx&reverse=whois&email=[email protected]
Search by Company / Organization Name:
https://api.whoxy.com/?key=xxxxx&reverse=whois&company=Acme+Corporation
Search by Keyword present at start of Domain Name:
https://api.whoxy.com/?key=xxxxx&reverse=whois&keyword=yahoo
Please note that search identifiers are case-sensitive. Owner Name identifier is "name". If you send "Name", it will be ignored.
Search Results Pagination
For faster data transfer, a maximum of 100 results are sent back per API call.
If your search returns more than 100 results, you can fetch remaining records through pages.
https://api.whoxy.com/?key=xxxxx&reverse=whois&identifier=value&page=2
https://api.whoxy.com/?key=xxxxx&reverse=whois&identifier=value&page=3
https://api.whoxy.com/?key=xxxxx&reverse=whois&identifier=value&page=4
Results 1 to 100 will be returned in Page #1,
Results 101 to 200 in Page #2,
Results 201 to 300 in Page #3, and so on…
Please note that you will be charged with single API credit each time you fetch a Result Page through Reverse Whois API.
Need more than 100 Results?
Fetch up to 1,000 results per API call using the Mini result mode:
https://api.whoxy.com/?key=xxxxx&reverse=whois&identifier=value&mode=mini
In mini mode, you will receive basic contact information like name, company and email.
Sample Output: Mini Mode (JSON) • Mini Mode (XML)
Fetch up to 2,500 results per API call using the Micro result mode:
https://api.whoxy.com/?key=xxxxx&reverse=whois&identifier=value&mode=micro
In micro mode, you won't receive any contact information of the domain registrant.
Sample Output: Micro Mode (JSON) • Micro Mode (XML)
Fetch up to 50,000 domain names per API call using the Domains Only result mode:
https://api.whoxy.com/?key=xxxxx&reverse=whois&keyword=yahoo&mode=domains
This mode can only be used with the "keyword" search identifier. You will receive the list of domain names as comma-separated values.
Sample Output: Domains Only Mode (JSON) • Domains Only Mode (XML)
Retrieving Data in XML Format
Simple add "&format=xml" to your API call and get results in XML Format.
https://api.whoxy.com/?key=xxxxx&reverse=whois&name=John+Smith&format=xml
Kindly use XML format only if your application strictly requires XML data. Compared to lightweight JSON format, XML carries a lot of extra baggage. This results in slower data transmission, and affects the overall performance of your application interacting with our API. We highly recommend you use JSON format whenever possible.
Account Balance Check
You can check your account's API query balance through:
https://api.whoxy.com/?key=xxxxx&account=balance
Sample Output: JSON Schema • XML Schema • JSON Live Results • XML Live Results
API Status Codes
Every API call will return a Status of either: 0 (ERROR) or 1 (SUCCESS)
In case of Status 0, the reason behind failure of the API call will also be returned.
Sample Output: Invalid API Key (JSON) • Invalid API Key (XML)
Pricing & Packages
| 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 |
Frequently Asked Questions
- API Key is available through: Account Manager » API Settings
- No, you will not be charged any API credits if your Reverse Whois query does not match any WHOIS records.
- Depending upon your search query, the results might contain multiple WHOIS records of the same domain name. However all the WHOIS records will be unique, and there will be no duplicate results. We save additional WHOIS record of a domain name only when there are any changes compared to the previous record. This is how we archive historical WHOIS records.
- As we do not save Raw Whois text in our database, this is not included with Reverse Whois results.
- Yes, this can be activated through: Account Manager » Account Settings
- Please signup now and receive FREE API Credits to test the Reverse Whois API.
If you have any questions, please contact us at 