Premium API enables access for 3rd party services to our research and tools. Our research database consists of 270+ million domain names, 5+ million name servers and 50+ million mail servers.
The API price model is based on Pay-as-You-go. Every API call gets debited from your API credit balance. The interface is based on HTTPS GET requests and the data type is JSON. The following API types are available:
|ASInfo||Returns information about every AS number.||5||AS24940|
|DomainIpDnsHistory||Returns IP/DNS history for a specific domain. The following records are supported: A, AAAA, MX, NS and SPF.||2||tcpiputils.com|
|DomainNeighbors||Returns domains hosted on the same IPv4 address.||1||tcpiputils.com|
|DomainSearch||Returns registered and previously registered domain names based on one or more keywords.||4||keyword tcpip|
|IP2ASN||Returns the AS number announcing the specific IP address.||free||188.8.131.52|
|IPv4Info||Returns information about every IPv4 address.||2||tcpiputils.com|
|MXNeighbors||Returns domains sharing the same mail server (MX record).||2||aspmx.l.google.com|
|NSNeighbors||Returns domains sharing the same name server (NS record).||2||ns1.google.com|
The examples are links to real JSON output of our API. You can use it to test your script. To view the JSON output formatted you can use an online JSON viewer like this. The API results for the DomainIpDnsHistory, DomainNeighbors, DomainSearch, MXNeighbors and NSNeighbors types are limited to 2,500 records per API call. The DomainSearch, MXNeighbors and NSNeighbors APIs have a page parameter where you can get a maximum of 25,000 results.
|Price per credit||$0.006||$0.004||$0.0029||$0.002||$0.0015|
|Payment||After paying via Credit Card (Canadian, United Kingdom and United States address only) or PayPal (worldwide), the API credits are immediately added to your balance.|
|VAT and Invoice||All prices are excluding VAT. When applicable for European Union countries, VAT is charged and will be displayed on order and billing information. Invoice will be available for download from the member center within 30 days after payment.|
|Terms and conditions||All subscriptions are one-time and non-recurring. API credits are valid for 12 months. See our full API Terms and conditions.|