Our hosted WHOIS Web service provides the registration details, also known as the WHOIS record, of a domain name, an IP address or an email address. All of the WHOIS information we offer comes both well-parsed and normalized to a consistent format so it can easily fait in with your business operations.Get started
500 free requests monthly. No credit card required.
Our well-parsed and normalized WHOIS data can quickly be integrated into different internal systems to speed up its use by various stakeholders.
The query results with both parsed fields and raw texts are returned in commonly-used XML and JSON formats.
Our WHOIS data is gathered in near-real-time, giving users exclusive access to accurate and updated information for better decision-making.
Digital forensics and incident response (DFIR) and other cybersecurity consultants can rely on WHOIS API to provide clients with easy-to-read lists of domains that may have ties to cybercrime, thus allowing them to enhance their cyber defense. This information could be particularly useful in mitigating phishing and other malware-enabled attacks.
Infosec professionals can work with WHOIS API to enhance their solutions and services and protect users against spam, dangerous websites, network infiltrations, and other online misdeeds.
Law enforcement agents can use WHOIS API as a tool during their investigations to find IP addresses, websites, and domains sharing attributes with criminals’ online networks.
Domainers use WHOIS API to check domain names availability and to track domain registration changes. They can see all historical changes to particular domains with a simple search while the monitoring functionality lets them stay updated on the most recent domain changes.
Domain investors use the information gained from WHOIS searches to learn about their competition and to identify investment opportunities.
Registries, registrars and domain brokers use WHOIS API to ensure reliable and secure domain name ownership transfer and management.
Payment processors and banks use WHOIS API to detect transaction fraud by spotting anomalies in customer information to flag down potential malicious acts.
Market researchers can use WHOIS API to obtain more insights into their user base with statistical analyses helping them create better marketing strategies and campaigns, focus on the right customers, and cater to formerly untapped markets.
WHOIS data enables brand agents to spot potential acts of trademark infringements like blatant domain name similarities, copycats, and duplicates.
Website owners and managers use WHOIS API to gather the contact details available in WHOIS records, possibly leading to exciting business opportunities and partnerships.
We provide extensions for the major open source threat intelligence platforms. Integrate WHOIS API into your application in minutes.Go to integrations
API access through WhoisXMLAPI can be purchased as an annual subscription. The access pricing is based on the number of queries, which is measured monthly with per-minute rate limits. The pricing structure gives predictability to business planning and solution architecture.Learn more
We work hard to improve our services for you. As part of that process, we welcome your feedback, questions, and suggestions. Please let us know about your thoughts and feelings, and any way in which you think we can improve our product.
For a quick response, please select the request type that best suits your needs. For more info regarding the request types, see Contact us page.