Premium API access

Premium API enables access for 3rd party services to our research and tools. Our research database consists of 280+ million domain names, 5+ million name servers and 55+ 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:

API typeDescriptionCreditsLink to API docs
ASInfoReturns information and statistics about every AS number.10API docs
DomainSearchReturns registered and previously registered domain names based on one or more keywords.4API docs
DomainTyposReturns registered domain typos and misspellings for a domain name.5API docs
HostingHistoryReturns IP/DNS history for a specific domain. The following records are supported: A, AAAA, MX, NS and SPF.4API docs
IPInfoReturns information and statistics about every IP address.3API docs
IP2ASNReturns the AS number announcing the specific IP address.freeAPI docs
ReverseAdsenseReturns domains using the same Google Adsense ID.6API docs
ReverseGAnalyticsReturns domains using the same Google Analytics ID.6API docs
ReverseIPReturns domains hosted on the same IP address.5API docs
ReverseMXReturns domains sharing the same mail server (MX record).5API docs
ReverseNSReturns domains sharing the same name server (NS record).5API docs
SubnetInfoReturns information and statistics about an IP subnet.4API docs


Price per credit$0.006$0.004$0.0029$0.002$0.0015
PaymentAfter paying via Credit Card (Canadian, United Kingdom and United States address only) or PayPal (worldwide), the API credits are immediately added to your balance.
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VAT and InvoiceAll 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 conditionsAll subscriptions are one-time and non-recurring. API credits are valid for 12 months. See our full API Terms and conditions.