Provide current and historical ownership information on domains / IPs. Identify all connections between domains, registrants, registrars, and DNS servers.
Look into all current and historical DNS / IP connections between domains and A, MX, NS, and other records. Monitor suspicious changes to DNS records.
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.
Access our web-based solution to dig into and monitor all domain events of interest.
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.
Detect and block access to and from dangerous domain names before malicious actors can weaponize them. Contact us today for more information.
Unlock integrated intelligence on Internet properties and their ownership, infrastructure, and other attributes.
Our complete set of domain, IP, and DNS intelligence available via API calls as an annual subscription with predictable pricing.
Offers complete access to WHOIS, IP, DNS, and subdomain data for product enrichment, threat hunting and more.
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.
Multi-Level API User Administration Now Available - Manage individual API keys for team members in your organization.
Learn MoreOur DNS lookup product line includes an API, lookup tool, and downloadable database to get immediate access to critical DNS server information for a given domain name (i.e., NS, MX, SPF, A, SOA, TXT, and more records).
Get started500 free API requests. No credit card required.
Just take a domain name and get the Domain Name System (DNS) information to identify who is hosting a particular domain name or website.
We also give access to our DNS intelligence with a RESTful API. Results are available in JSON or XML formats obtainable via HTTP requests. Our outputs are properly parsed to facilitate integration with other commercial platforms or internal applications.
Our DNS intelligence is also available in an all-inclusive database with billions of DNS records for greater integration possibilities.
Gather DNS intelligence in a way that works best for you and your organization. Lookups are straightforward with a shareable report, while our API and database are built for easy integration and custom use.
From a queried domain name, you can determine its IP address/A record, mail servers/MX records, nameservers/NS records, SPF/TXT records, and many other DNS records.
Map entire connected domain footprints by combining our DNS lookup services with reverse IP, reverse MX, and reverse NS queries.
Use DNS data to expand your knowledge of your web properties. Dangling DNS records and related misconfigurations and settings can lead to vulnerability exploitation. Identifying all your Internet-accessible records is the first step toward seeing the big picture.
Monitor the configurations and potential anomalies in third-party suppliers’ or partners’ DNS records. Misconfigured, forgotten or unused records can put your users and network at risk if not addressed.
“WhoisXML was the game changer for us. It has revolutionized our ability to disrupt cybercrime in process and at scale by quickly identifying all of the vendors providing material support for scammers using sophisticated website templates that look legitimate. By quickly identifying the vendors unknowingly supporting the criminals, we can provide them with public interest justification to burn down the criminal infrastructure.”
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