Reverse Whois API documentation
Perform reverse domain lookups programmatically. But before you do, check the API documentation so that you understand how our API works.
Reverse Whois API code examples
How to use Reverse Whois API
Using our Reverse Whois API is a bit complex. Ther response is much larger than the ones you would get from our other APIs. And on the other hand, if you compare it to other Reverse Whois APIs on the market, it doesn't contain any private data. Read more by clicking the button below.
Currently in beta
Please have in mind that even though our database is growing every day, and our Reverse Whois API is improving, this API is still in beta stage.
WhoAPI provides a tremendously valuable service – machine-readable WHOIS data! We’re using it for automatic checks of domain squatting around our trademarks.