Parsed Whois API, Domain reputation, IP whois, Contact information, Website screenshots, Registration dates, Expiry dates, Nameservers, JSON format, XML format
WhoAPI offers 10 different APIs, start with our whois API now!
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Parsed whois API with JSON output, at your service.

Since 2012 we have been improving our whois API. We parse the whois data and deliver it to you in a JSON output. This is the list of TLDs (top level domains, domain extensions) we support. Here is our very simple documentation that hasn't changed much over the years, we like the reliability of a consistent API documentation. As one of your first steps, we recommend you look at some of our code examples.

Whois API   |   Screenshot API   |   IP Whois API

JSON whois API

Whois API

Our robust JSON Whois API (with XML support) delivers domain information for hundreds of millions domain names, across hundreds domains registrars and domain extensions.

website screenshots API

Screenshot API

Advanced, reliable and affordable. We've taken website screenshots to another level. Test it without making any commitments.

Bulk IP lookup API

IP Whois API

This is our approach to bulk IP lookup. Get the owner information for millions of IP addresses. Our IP Whois API is fast and secure.


Geolocation API   |   Domain Score API   |   Email blacklist API

Geolocation API

Geolocation API

Separate the website visitors or assign them a country they are coming from. Easy, automated and affordable.

Domain score

Domain Score API

This API is the culmination of 5 years in the API arena. Our algorithm ranks domain names, and helps you separate the wheat from the chaff, with a single API request.

Email blacklist API

Blacklist API

Essentially, this is a bulk email blacklist check. With a simple API request check any domain name or IP address against relevant blacklists.

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Our clients

We have clients on every continent and 26 countries around the world.

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