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<form data-hs-cf-bound="true">
  <h2>Give Our Intelligence <span class="span-no-wrap">a Try</span></h2>
  <div class="common-lookup-form-wrapper"><!----> <!----> <!---->
    <div class="inputs-wrapper"><input type="text" placeholder="Domain, E-mail or IP address" name="search" required="required"> <button type="submit"
        class="btn common-product-btn usual-sized-btn with-spinner"><span>Search</span><i hidden="hidden" class="icon-spin4 animate-spin"></i></button></div> <span>Example: google.com, 8.8.8.8 or google@gmail.com</span> <!---->
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        <option value="" disabled="" selected="">Request type*</option>
        <option value="sales" data-textarea-placeholder="Quote request and questions regarding product features or business proposals." data-email="sales">Sales</option>
        <option value="servicedesk" data-textarea-placeholder="Any questions regarding product issues (unclear behavior, bugs, stability issues etc.)." data-email="service.desk">Technical Support</option>
        <option value="account" data-textarea-placeholder="Any questions regarding account issues (subscription renewals, purchases, cancellations etc.)." data-email="service.desk">Account issues</option>
        <option value="dev" data-textarea-placeholder="Request a customized product or propose a feature." data-email="dev">Product customization</option>
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      <div class="select-styled">Request type*</div>
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        <li rel="" hidden="hidden">Request type*</li>
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        <li rel="account" data-contact-placeholder="Any questions regarding account issues (subscription renewals, purchases, cancellations etc.)." data-email-part="service.desk">Account issues</li>
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  <p class="shoot-us-message">Or shoot us an email to <a></a></p>
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<form id="subscribe-form" data-hs-cf-bound="true">
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  <div class="flex-row-wrapper img-comp-block-wrapper">
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      <img data-src="https://main.whoisxmlapi.com/images/main-page/three-year-growth.png" alt="Ranked since 2017" class="lazyload">
      <span><span class="span-no-wrap">Ranked</span> <br><span class="span-no-wrap">since 2017</span></span>
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    <div class="company-links-block">
      <a href="http://linkedin.com/company/whois-api-llc" target="_blank"> <img data-src="https://main.whoisxmlapi.com/products-vue-assets/public/images/common/icons/linkedin-in-brands.svg" class="lazyload" alt="LinkedIn | WhoisXML API" width="18px" height="18px"> </a>
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Text Content

 * APIs
   * WHOIS API
   * Brand Alert API
   * Bulk WHOIS API
   * DNS Lookup API
   * Domain Availability API
   * Domain Reputation API
   * Domains & Subdomains Discovery API
   * Email Verification API
   * IP Geolocation API
   * IP Netblocks API
   * MAC Address API
   * Premium API Services
   * Registrant Alert API
   * Reverse DNS API
   * Reverse IP API
   * Reverse MX API
   * Reverse NS API
   * Reverse WHOIS API
   * Screenshot API
   * SSL Certificates API
   * Subdomains Lookup API
   * Website Categorization API
   * Website Contacts API
   * WHOIS History API
 * Data feeds
   * WHOIS Database Download
   * WHOIS History Database Download
   * All Registered Domains
   * Disposable Email Domains Data Feed
   * DNS Database Download
   * Early DGA Detection Feed
   * Early Warning Phishing Feed
   * Free Email Domains Data Feed
   * IP Geolocation Database Download
   * IP Netblocks WHOIS Database
   * MAC Address Vendor Database
   * Newly Created Websites
   * Newly Registered Domains
   * Real-time Domain Registration
   * Real-time SSL Certificates Streaming
   * SSL Certificates Database
   * Subdomains Database Download
   * Threat Intelligence Data Feeds
   * Typosquatting Data Feed
   * Website Categorization Database
 * Domain Research & Monitoring
   Domain Research Suite Domain Monitor Registrant Monitor Brand Monitor
   Reverse WHOIS Search WHOIS History Search WHOIS Search Reverse DNS Search
   Domain Availability Check Domains & Subdomains Discovery Bulk WHOIS Search
   Bulk Email Verification IP Geolocation Lookup
 * Enterprise packages
   Enterprise API Packages Security Intelligence (SI) Suite Premium API Services
 * Custom solutions
   Internet Statistics Reports
 * Solutions
   Internet Surface Intelligence Cyber Threat Intelligence Enrichment Solutions
   Digital Risk Protection Intelligence Know Who You’re Talking To (KWYTT)
   Intelligence Law Enforcement Intelligence Market and Competitive Intelligence
   Security Operations and Platform Intelligence
 * Resources
   * API Status
   * Affiliate Programs
   * Careers
   * Data Exchange Program for Internet Abuse Prevention
   * Knowledge Base
   * Our Mission
   * Podcasts
   * Press Release
   * Privacy Policy
   * Research and Media Collaborations
   * Security Intel Exchange Program
   * Success Stories
   * Terms of Service
   * Threat Reports
   * Use Cases
   * Product Sheets
   * WXA Academy
   * Webcasts
   * White Papers
   * WhoisXML API Blog
   * WhoisXML API in Figures
 * Contact Us

Products
Products APIs Data Feeds Web Tools Domain Research & Monitoring Enterprise
Packages

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

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

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)

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

Domains & Subdomains Discovery Domain Availability Brand Alert DNS Lookup
Email Verification Registrant Alert Reverse IP/DNS Reverse MX
Reverse NS Reverse WHOIS WHOIS History Screenshot Service
Subdomains Lookup Website Categorization Website Contacts

DOMAIN/WHOIS

WHOIS API Bulk WHOIS API Reverse WHOIS API WHOIS History API Domains &
Subdomains Discovery API Domain Availability API

DNS/IP

DNS Lookup API Reverse IP API Reverse MX API Reverse NS API Reverse DNS API
Subdomains Lookup API IP Geolocation API IP Netblocks API

INTELLIGENCE

Website Categorization API Domain Reputation API Brand Alert API Registrant
Alert API Email Verification API Threat Intelligence API

OTHER

Website Contacts API MAC Address API Screenshot API SSL Certificates API Premium
API Services

DOMAIN/WHOIS

WHOIS Database Download WHOIS History Database Download Newly Registered Domains
Real-time Domain Registration

DNS/IP

DNS Database Download Subdomains Database Download IP Geolocation Database
Download IP Netblocks WHOIS Database

INTELLIGENCE

Early DGA Detection Feed Early Warning Phishing Feed Typosquatting Data Feed
Threat Intelligence Data Feeds Disposable Email Domains Data Feed Free Email
Domains Data Feed

OTHER

Website Categorization Database MAC Address Vendor Database SSL Certificates
Database Real-time SSL Certificates Streaming Newly Created Websites All
Registered Domains

DOMAIN/WHOIS

WHOIS Lookup Bulk WHOIS Lookup Reverse WHOIS Lookup WHOIS History Lookup Domains
& Subdomains Discovery Lookup Domain Availability Lookup

DNS/IP

DNS Lookup Reverse IP Lookup Reverse MX Lookup Reverse NS Lookup Reverse DNS
Lookup Subdomains Lookup IP Geolocation Lookup Bulk IP Geolocation Lookup IP
Netblocks Lookup

INTELLIGENCE

Website Categorization Lookup Domain Reputation Lookup Brand Alert Lookup
Registrant Alert Lookup Email Verification Lookup Bulk Email Verification Lookup
Threat Intelligence Lookup

OTHER

Website Contacts Lookup MAC Address Lookup Screenshot Lookup SSL Certificates
Lookup

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

Reverse WHOIS Search WHOIS History Search WHOIS Search Reverse DNS Search Domain
Availability Check Domains & Subdomains Discovery

MONITORING

Domain Monitor Registrant Monitor Brand Monitor

WHITE-LABEL

Domain Research Suite Brand Monitor

ENTERPRISE API PACKAGES

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

SECURITY INTELLIGENCE (SI) SUITE

Offers complete access to WHOIS, IP, DNS, and subdomain data for product
enrichment, threat hunting and more.

PREMIUM API SERVICES

Enjoy priority data access with our premium API services topped with extra perks
including dedicated team support, enterprise-grade infrastructure, and SLAs for
full scalability and high performance.

×
Solutions
 * Internet Surface Intelligence
 * Cyber Threat Intelligence Enrichment Solutions
 * Digital Risk Protection Intelligence
 * Internet Statistics Reports
 * Know Who You’re Talking To (KWYTT) Intelligence
 * Law Enforcement Intelligence
 * Market and Competitive Intelligence
 * Security Operations and Platform Intelligence

Resources

Research Center Partnerships & Integrations About Us ×

Blog Podcasts Threat Reports Use Cases Product Sheets
Webcasts White Papers Academy

Affiliate Programs Data Contribution and Exchange Program Research and Media
Collaborations

API Status Careers Knowledge Base Our Mission
Press Release Success Stories WhoisXML API in Figures

Lang
 * English
 * Português
 * 日本語
 * 中文 (简体)

Contact Us
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The Who Behind Cyber Threat Intelligence


DOMAIN & IP DATA INTELLIGENCE FOR GREATER ENTERPRISE SECURITY

For over a decade, we have collected, aggregated, and delivered domain, IP, and
DNS intelligence to make the Internet more transparent and secure. Our data
feeds and APIs have proven invaluable in augmenting the capabilities of
commercial security platforms (SIEM, SOAR, TIP, ASM) and supporting threat
detection and response (TDR), third-party risk management (TPRM), identity
access management (IAM), and other cybersecurity processes.

Law enforcement agencies, managed security service providers (MSSPs), and
security operations centers (SOCs) benefit from our intelligence to defend
against advanced persistent threats (APT), fight cybercrime, and achieve
superior network visibility. Fortune 1000 companies and SMBs rely on our data to
protect their digital assets, extend their brand protection efforts, detect
phishing and fraud, and monitor the global domain activity landscape.

Start API Trial or Request a Quote

Join more than 50K satisfied customers

See all coverage stats
16.7 billion+Historic WHOIS Records
4.2 billion+Domains and subdomains
7,596+TLDs & ccTLDs tracked
13.1 million+IP netblocks
99.5%IP addresses in use covered
774 million+Domains tracked
230 million+Categorized websites



GIVE OUR INTELLIGENCE A TRY

Search
Example: google.com, 8.8.8.8 or google@gmail.com



OUR CYBER THREAT INTELLIGENCE


DOMAIN WHOIS INTELLIGENCE

Get access to complete domain name footprints, which include ownership,
timeline, updates, statuses, and other essential registration details for about
every domain on the Internet.

Learn more


PASSIVE DNS INTELLIGENCE

Dive into the biggest passive DNS database comprising billions of historical DNS
data points and relevant records for the vast majority of IP addresses and
hosts.

Learn more


IP GEOLOCATION INTELLIGENCE

Obtain precise geographical data down to the postal code with latitude and
longitude coordinates, network information, timezone, connected domains, and
more for deeper contextualization.

Learn more


IP NETBLOCKS INTELLIGENCE

Access the most structured and detailed IP ranges correlated with ownership
data, contacts, and network records from WHOIS, Regional Internet Registries
(RIRs), and other sources.

Learn more


ENTERPRISE-GRADE DATA CONSUMPTION MODELS

 * COMPREHENSIVE & UPDATED DATA FEEDS
   
   Enjoy complete control with convenient download formats for custom
   integrations, investigations, and data enrichment efforts in line with
   security policies.
   
   Check all Data feeds

 * READILY INTEGRATABLE
   APIS
   
   We offer domain, DNS, and IP data in meaningful ways to developers with
   forward, reverse, and bulk APIs and code libraries for all major programming
   languages.
   
   Check all APIs

 * PROFESSIONAL RESEARCH & MONITORING TOOLS
   
   Our lookup and monitoring tools are easy to use with straightforward reports
   for domain names, IP addresses, email addresses, and other search terms of
   interest.
   
   Check Tools


ENTERPRISE PACKAGES


LOOKING FOR AN ALL-INCLUSIVE DATA FEED PACKAGE?

A comprehensive set of data feeds containing both real-time and historical
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.

Check Enterprise Data Feed Packages


SEEKING TO USE OUR APIS
AT A LARGER SCALE?

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.

Check Enterprise API Packages


COMMON USE CASES


BUILD BETTER CYBERSECURITY PLATFORMS

Commercial security platform providers such as Security Information and Event
Management (SIEM), Security Orchestration, Automation and Response (SOAR), and
Threat Intelligence Platforms (TIPs), use our intelligence to boost their
capabilities and achieve better threat contextualization and prioritization.


STRENGTHEN YOUR MANAGED SECURITY SERVICES

Managed Security Service Providers (MSSPs) use our data as part of their
correlation processes to deliver visibility into their clients’ networks and
better detect, analyze, and deal with all types of security events, threats, and
vulnerabilities.


ASSESS AND IMPROVE YOUR SECURITY POSTURE

Security Operations Centers (SOCs) benefit from the breadth and depth of our
intelligence to enhance ongoing cybersecurity processes and strategies. Access
to our extensive data footprints, APIs, and tools helps detect, categorize, and
respond to incidents.


CONDUCT MEANINGFUL CYBER INVESTIGATIONS

Law enforcement & digital forensics professionals retrieve insights from our
intelligence repositories to kickstart and unlock investigations as well as to
gather pieces of evidence. Indicators of compromises often include domain names,
DNS records, and IP addresses.


ENRICH YOUR BUSINESS DATA

A better understanding of current and historical footprints can be of great
value to digital marketers, business development managers, researchers, and
other specialists to level up their business intelligence and build commercial
applications.


PROTECT YOUR DOMAIN FROM BRAND ABUSES

Brand managers and legal specialists use our footprints and monitoring tools to
stay updated on typosquatting, cybersquatting abuses, trademark infringements,
and other abuses and misrepresentations of their brands' domain names.




SOLUTIONS


INTERNET SURFACE INTELLIGENCE

Attack surfaces continue to widen as interconnectivity grows and business
operations expand and evolve. Attack surface management (ASM) solutions must
adapt and continuously improve their asset discovery, scoring, monitoring, and
prioritization capabilities, notably by accessing real-time and comprehensive
Internet intelligence sources, including DNS, IP, and WHOIS data.

Learn more


SECURITY OPERATIONS AND PLATFORM INTELLIGENCE

Enterprises rely on managed security operations and platforms for
round-the-clock protection against threat actors. Providing this service
requires comprehensive and up-to-date visibility into the primary source of
threats—the Internet. Historical and real-time access to Internet events,
including DNS, WHOIS, and IP information, enables early threat detection and
accurate contextualization.

Learn more


CYBER THREAT INTELLIGENCE ENRICHMENT SOLUTIONS

Cyber threat intelligence is only as good as the data used to process it.
Supplementing your current cyber threat intelligence stack with real-time and
historical DNS, domain, WHOIS, IP, and other Internet-related data can enable
critical security processes—from early and real-time threat detection, analysis,
and expansion to threat disruption.

Learn more


LAW ENFORCEMENT SOLUTIONS

Policing requires a balanced mix of technological advancement and
intelligence-led initiatives. A unified view of the Internet can supplement
existing law enforcement data sources and ensure that no stones are left
unturned. DNS, WHOIS, and IP intelligence can provide clues that are otherwise
hidden or overlooked, aiding law enforcers in their fight against cybercrime.

Learn more


DIGITAL RISK PROTECTION INTELLIGENCE

As digital transformation continues, organizations become exposed to a growing
number of digital risks. Gaining access to Internet-wide intelligence, including
DNS, IP, and domain data, can enhance enterprise protection against various
digital risks, whether from third parties, internal vulnerabilities, supply
chain channels, or other sources.

Learn more


MARKET AND COMPETITIVE INTELLIGENCE

With half the world’s population and almost all organizations going online, the
Internet is a valuable source of market data. DNS, IP, WHOIS, and other Internet
data can provide much-needed insights that can help with market forecasting,
competitive research and monitoring, business-to-business (B2B) targeting,
service discovery, and other critical business processes.

Learn more


KNOW WHO YOU’RE TALKING TO (KWYTT) INTELLIGENCE

Our interconnected global ecosystem requires constant communication with
potential and existing customers, vendors, suppliers, and several other parties.
Not all of them can be trusted, hence the need for initial and continuous
identity verification that can be enriched with real-time access to domain, IP,
DNS, and other Internet-related data.

Learn more
For more details download our solutions sheet





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 * Account issues
 * Product customization

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APIS

 * WHOIS API
 * Brand Alert API
 * Bulk WHOIS API
 * DNS Lookup API
 * Domain Availability API
 * Domain Reputation API
 * Domains & Subdomains Discovery API
 * Email Verification API
 * IP Geolocation API
 * IP Netblocks API
 * MAC Address API
 * Premium API Services
 * Registrant Alert API
 * Reverse DNS API
 * Reverse IP API
 * Reverse MX API
 * Reverse NS API
 * Reverse WHOIS API
 * Screenshot API
 * Subdomains Lookup API
 * Website Categorization API
 * Website Contacts API
 * WHOIS History API

DATA FEEDS

 * WHOIS Database Download
 * WHOIS History Database Download
 * All Registered Domains
 * Disposable Email Domains Data Feed
 * DNS Database Download
 * Early DGA Detection Feed
 * Early Warning Phishing Feed
 * Free Email Domains Data Feed
 * IP Geolocation Database Download
 * IP Netblocks WHOIS Database
 * MAC Address Vendor Database
 * Newly Created Websites
 * Newly Registered Domains
 * Real-time Domain Registration
 * Subdomains Database Download
 * Threat Intelligence Data Feeds
 * Typosquatting Data Feed
 * Website Categorization Database



DOMAIN RESEARCH & MONITORING

Domain Research Suite Domain Monitor Registrant Monitor Brand Monitor
Reverse WHOIS Search WHOIS History Search WHOIS Search Reverse DNS Search Domain
Availability Check Domains & Subdomains Discovery Bulk WHOIS Search Bulk Email
Verification IP Geolocation Lookup

ENTERPRISE PACKAGES

Enterprise API Packages Security Intelligence (SI) Suite Premium API Services

CUSTOM SOLUTIONS

Internet Statistics Reports

CYBER-SECURITY RESEARCH

Threat Intelligence Platform Threat Intelligence API

DRS WHITE-LABEL

 * Domain Research Suite
 * Brand Monitor

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