Managed Security Service Providers (MSSPs) | WhoisXML API
Products APIs Data feeds Web tools Domain Research & Monitoring Enterprise packages Cyber Threat Intelligence
WHOIS / WHOIS History
WHOIS / WHOIS History

Provide current and historical ownership information on domains / IPs. Identify all connections between domains, registrants, registrars, and DNS servers.

DNS / DNS History
DNS / DNS History

Look into all current and historical DNS / IP connections between domains and A, MX, NS, and other records. Monitor suspicious changes to DNS records.

IP Geolocation / IP Netblocks
IP Geolocation / IP Netblocks

Get detailed context on an IP address, including its user’s geolocation, time zone, connected domains, connection type, IP range, ASN, and other network ownership details.

Domain Research Suite (DRS)
Domain Research Suite (DRS)

Access our web-based solution to dig into and monitor all domain events of interest.

Domain Research Suite (DRS)
Domain Research Suite (DRS)

Get access to a web-based enterprise-grade solution to search and monitor domain registrations and ownership details for branded terms, fuzzy matches, registrants of interest, and more.

Research
Monitoring
Enterprise API Packages
Enterprise API Packages

Our complete set of domain, IP, and DNS intelligence available via API calls as an annual subscription with predictable pricing.

Enterprise Data Feed Packages
Enterprise Data Feed Packages

Downloadable domain, IP, and DNS datasets for efficient and unrestricted access to all of our intelligence sources within your network perimeter.

Enterprise Tools Packages
Enterprise Tools Packages

Access to our domain and threat intelligence tools in combo with package discounts for enterprise and government customers.

Enterprise Security Intelligence Packages
Enterprise Security Intelligence Packages

Packages designed to augment commercial and in-house security platforms, support managed security services, and facilitate investigations.

Threat Intelligence Analysis
Threat Intelligence Analysis

Carry a complete threat intelligence analysis for a given domain or IP address and get access to a report covering 120+ parameters including IP resolutions, website analysis, SSL vulnerabilities, malware detection, domain ownership, mail servers, name servers, and more.

Threat Intelligence APIs
Threat Intelligence APIs

Gather threat intelligence via API calls covering Domain’s Infrastructure analysis, SSL Certificates Chain, SSL Configuration Analysis, Domain Malware Check, Connected Domains, and Domain Reputation Scoring.

Threat Intelligence Data Feeds
Threat Intelligence Data Feeds

Bolster enterprise security with our feeds covering Typosquatting domains, Disposable domains, Phishing URLs, Domain & IP reputation, Malicious URLs, Botnet C&C, and DDoS URLs.

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Managed Security Service Providers (MSSPs)

MSSPs can readily ensure their clients’ cyber safety with the right solutions. Our APIs, tools, and data feed packages help them proactively thwart external attacks against clients’ networks, expose vulnerabilities from within, and significantly reduce the margin of error for incident identification and remediation.



We empower MSSPs by providing them with access to near-real-time datasets; email, IP geolocation, domain research and monitoring tools; and threat intelligence feeds so they can offer round-the-clock protection. Users can manage safety audits, deploy customized updates, and monitor IT compliance with our enterprise packages.

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7.0+ billion
WHOIS records
582+ million
Domain names tracked
2,864+
TLDs & ccTLDs
99.5 %
IP addresses in use covered

Customizable solution components

Enterprise Security Intelligence Packages

A suite of WHOIS, Domain, and IP intelligence packages designed to meet the needs of the most advanced cybersecurity users — in-house security departments, managed security service providers, and cyber forensics investigators and threat hunters.

Enterprise Tools Packages

A set of tools and platforms that's useful for domain research & monitoring, threat investigation, threat intelligence and general cyber-security research.

Enterprise API Packages

A comprehensive set of APIs for domain, WHOIS, DNS and IP research & monitoring, plus threat investigation, threat defense and SIEM (security information & event management) data enrichment.

Enterprise Data Feed Packages

A comprehensive set of data feeds that contain both real-time and historic domains, WHOIS, DNS, IP and cyber threat intelligence datasets that are useful for efficient big data infosec analytics, forensic analysis, SIEM (security information & event management) data enrichment. Ideal when enterprise or government security policies prohibit the use of API calls outside the internal network.

You can select all of the mentioned components or pick those you specifically need. For pricing and details contact us.

Practical usage

  • Use our flexible enterprise solutions to support your digital forensics, cyber investigations, security information and event management (SIEM), and security orchestration automation and response (SOAR) offerings.
  • Accelerate threat detection and management processes with our readily available and customizable security solution packages.
  • Create accurate reports based on well-parsed WHOIS, IP geolocation, and DNS datasets; domain monitoring and research tools; and APIs.
  • Reinforce the security of your IT ecosystem with our enterprise toolkits and individual APIs for cyber forensics data enrichment.
  • Access critical data when and where you need it with our vast repository of domain data, threat intelligence feeds, and APIs.
  • Pull out required WHOIS records and DNS data when coordinating with law enforcement for cyber investigations and litigation procedures.
  • Prevent attempts by threat actors to defraud clients by blocking access from malicious URLs.

Customer success stories

Whois Data Opening up a New Avenue
for the Measurement of Entrepreneurship

Entrepreneurship is the central process through which economic growth and performance is fostered in a regional economy. Its evaluation is thus of paramount importance for policymakers and economists. However, the quantification of entrepreneurship, that is, introduction of measures to describe the attempts to start growth-oriented business, the likelihood of their success, the ability to raise venture capital, etc. is a challenging task due to the lack of globally available and accurate input data on e.g. business registration.

In a recent working paper a new approach is proposed to overcome this issue by using WHOIS registration data. The approach is applied to companies in Oxford and Cambridge, UK as a demonstration, by using data purchased from WhoisXML API.

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WHOIS Data for Vulnerability Notifications

One of the cornerstones of cybersecurity is threat intelligence sharing. Maintenance of our IT systems' security and their protection against malicious activity require up-to-date knowledge of the entire field. There are significant efforts to assist experts in this activity, including those of market leaders such as IBM X-Force Exchange.

Due to the decentralized architecture of the Internet, however, the collaboration of the actors as well as voluntary campaigns in order to detect vulnerabilities are also of utmost importance. If, however, the owners of the affected systems cannot be notified, these efforts can hardly achieve their positive goal. And in this notification process, WHOIS data have their use...

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