Our hosted WHOIS API service provides the registration details, also known as the WHOIS record data, of a domain name, an IP address, or an email address. All of the WHOIS information we offer is adequately parsed and normalized to a consistent format so it can easily fit in with your business operations.Get started
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WHOIS API is a consumption model variant that gathers a variety of domain ownership and registration data points from a comprehensive WHOIS database. Developers can integrate WHOIS API into existing internal systems and commercial applications using client libraries and integration modules.
Our WHOIS repository contains information from millions of active domain and subdomain records that cover more than 7,596 generic (gTLDs) and country-code top-level domains (ccTLDs) and second-level domains (ccSLDs).
Our WHOIS data can be quickly integrated into different internal systems to speed up its use by various stakeholders.
Our WHOIS data is gathered in near-real-time, giving you 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 as well as to investigate third-party risks.
Law enforcement agents can use WHOIS API as a tool for investigations to find IP addresses, websites, and domains sharing attributes with criminals’ online networks.
Domainers can determine if a domain name is available and keep up with registration changes by working with WHOIS API. 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 find WHOIS information helpful when tracking the competition and looking for new investment opportunities.
Domain brokers and registrars can rely on WHOIS API to efficiently manage domain name ownership transfers.
DevOps professionals can use WHOIS data to build new features and enrich other data sources as part of their software development and IT operations.
Payment processors and banks can prevent transaction fraud by looking out for customer information discrepancies and thwart malicious actors with the help of WHOIS API.
WHOIS API simplifies marketing research by allowing you to gather domain ownership information for statistical analyses. It also helps you make tailor-fit marketing strategies and campaigns for various user bases and identify otherwise-untapped opportunities.
WHOIS data enables brand agents to spot potential instances of trademark infringement like using blatantly similar, copycat, or duplicate domain names. This information can also be used with Website Categorization products to gather greater context around a domain.
Know your customers and prospects better with WHOIS API’s domain ownership information. Make your outreach efforts easier by using the contact details in domain records.
Our database comes in the form of CSV files and MySQL dumps for maximum compatibility and fast integration into existing systems.Order database
We provide extensions for major open-source threat intelligence platforms. Integrate WHOIS API into your applications in minutes.Go to integrations
“Keeping track of new domain registration activity is essential in today's digital economy. We look forward to continuing our collaboration with WhoisXML API to help customer leverage critical domain insights in a secure cloud environment that aligns with their data privacy and governance requirements.”
“WhoisXML API is amazing for checking out the historic registration information of a domain, pivoting to locate the alternate registrations with the same details and also my cyber investigations. The data proved very useful when investigating pig butchering scams and domains that host child abuse material.”
“Very useful for investigations, we can go back in history and see when domains were registered and who owned them at a certain time.”
“WhoisXML API builds out data sets that help users correlate attack infrastructure with related IP and WHOIS information.”
Our APIs are available in an enhanced version that offers better performance with a dedicated load balancer and a premium endpoint to enable faster throttling for large-scale API deployments.Learn more
Do much more with our annual API subscriptions that cover WHOIS data and other types of domain, IP, and DNS intelligence. See how we can match your business planning and solution architecture requirements.Learn more