WHOIS Search | Access a domain’s WHOIS record | Domain Research Suite | 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 / DNSHistory
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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WHOIS Search

Get the registration details, also known as “WHOIS record”, of any given domain or IP address with WHOIS Search.

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WHOIS Search

WHOIS Search gives an exhaustive list of data points related to a domain, an IP address, or an email address. Use the service to find out a domain registrant’s name, organization, email address, registrar, and contact details. WHOIS Search also tells you how old a domain is, if it is available for registration, and more.

7.0+ billion Historic WHOIS Records
582+ million Domains tracked
2,864+ TLDs tracking
10+ years of data crawling

Get all you need to know about a domain name of your interest

Get current WHOIS records

The domain ownership data made available via WHOIS Search is actionable and refreshed daily to enable better decisions.

Find all connected domains

Build a reverse WHOIS report for the domain you queried to determine any other domains associated with it.

Track record modifications

Want to be immediately notified when a domain’s status changes? Add any registrant field input—name, email address, street address, postal code, or phone number—to Registrant Monitor.

Practical uses

Prevent intellectual property and trademark abuse


You can use WHOIS Search to scan for lookalike, duplicate, or copycat domains.

Avoid becoming the next cyberattack victim


Any domain, website, or IP address that has connections to fraudulent and malicious activities and individuals can pose risks to your business. Avoid such ties with WHOIS Search’s help.

Take advantage of untapped opportunities


Use the contact details domain owners provide in their WHOIS records to look for partnership opportunities. You can also find more buyers that way.

Access WHOIS data through API calls

Enjoy quick and easy integration of WHOIS data without excessive programming. Access our readily available code libraries and get started today.

Learn more about the API Integration

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