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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
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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.

Security Intelligence (SI) Suite
Security Intelligence (SI) Suite

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

Premium API Services
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.

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WhoisXML API Blog

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WhoisXML API Historical WHOIS Intelligence Now Covers 20+ Billion Records

We are thrilled to announce that our historical WHOIS database now contains more than 20 billion WHOIS records. This continuous repository expansion plays an important role in strengthening and deepening cybersecurity investigations, digital risk protection, and attacker footprinting, among other use cases.

WhoisXML API has been actively upgrading its WHOIS history product coverage for more than 14 years now of WHOIS data collection, aggregation, and processing. In recent years, we have had several notable repository expansions. From 13.7+ historical WHOIS records in Q1 2022, our coverage rose to 15.6 billion in Q1 2023. This year, we saw an estimated 28% increase, with our historical WHOIS data now spanning more than 20 billion records.

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Premium DNS Database Coverage Increased by 578%

We are thrilled to announce that the coverage of our premium DNS Database Download significantly improved over the past few months. The most recent measurement in 2024 showed that the database’s total number of DNS records increased by 578% compared to May 2023. 

More precisely, there was a 1,313% increase in A records and a 700% increase in the total number of AAAA records. Overall, DNS Database Download now contains more than 35.3 billion DNS records.

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Newly Registered Domains (NRD) 2.0 vs. 1.0: What Has Changed?

WhoisXML API has significantly improved its Newly Registered Domains (NRD) service, leading to the introduction of NRD 2.0 and phasing out of NRD 1.0 with end of service (EOS) and end of life (EOL) scheduled respectively on 1 March 2024 and 31 December 2024.

Among other enhancements, new domain activities that are monitored now not only span “added” and “dropped” domains but also “updated” and “discovered” domains. Below is an overview of NRD 2.0’s technical benefits.

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WhoisXML API Upgrades its Typosquatting Data Feed Offering

We are excited to announce that we recently upgraded our Typosquatting Data Feed. This innovative release provides improved typosquatting detection and extended coverage to further empower the identification of suspicious domain registrations.

The specific improvements and changes made to this version of Typosquatting Data Feed include:

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WhoisXML API Launches Email Verification API V3

We are excited to introduce Email Verification API V3, the latest upgrade to our Email Verification product line. This innovative release is set to provide better stability and more accurate results with enhanced checks to empower substantially improved email validation processes.

This new version of Email Verification API will further enable a variety of use cases, including:

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WhoisXML API Launches New Website Categorization Database

We are excited to introduce a new and improved version of our Website Categorization Database, now enriched with critical Autonomous System (AS) and WHOIS data points. This innovative release enables more accurate and targeted website classification with its 80+ granular categories.

The specific improvements made to this version of Website Categorization Database include:

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Newly Registered Domains V2 (NRD2) Top ccTLD Coverage Increased by 154% in 2023

WhoisXML API continues to improve its products and services as part of its commitment to a safer and more transparent Internet through the delivery of high-quality and reliable domain, IP, and DNS intelligence sources.

Among our most recent developments is the massive increase in the country-code top-level domain (ccTLD) coverage of the Newly Registered Domains V2 (NRD2) Data Feed. Specifically, we recorded a 153.95% increase in the number of domain activity for the top 10 ccTLDs in 2023 compared to 2022.

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WhoisXML API Launches Threat Intelligence API and Lookup

We are excited to introduce Threat Intelligence API and Threat Intelligence Lookup, the latest additions to our Threat Intelligence product line. These innovative releases are set to improve threat detection and response and broaden threat insight sources by providing instant and accurate threat information about any domain, URL, IP address, CIDR number, or hash.

Threat Intelligence API and Threat Intelligence Lookup let users stay ahead of the latest threats by providing:

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