#1 WHOIS History Database with extensive historical domain coverage

Vinny Adjibi

PhD Student

Georgia Institute of Technology

“Whois XML API products represent an invaluable resource for security researchers, seamlessly integrating within complex pipelines with ease.”

Harold Buchman

Designer / Developer

BuchmanDesign.com

“Your history lookup is a life saver. I’m a web designer with a client who lost track of one of their important domain names. Using your web-based WHOIS history search, I was able to prove they do indeed own the domain and assist them with their registrar account recovery process. This was sort of a one-off for me, but if I face a similar situation in the future, I’ll definitely come back to make further use of your amazing tools and resources.”

Kim Kok

Vice President

Core4ce

“We want to provide all Cyberscape users the ability to integrate relevant data for their cyber threat investigations. WhoisXML API provides unique data that will be helpful to the cyber threat investigation community, allowing analysts to shorten the cycle of understanding and mitigating threats.”

Johnny So

CS PhD Candidate

Stony Brook University

“WhoisXML API offers a comprehensive suite that can serve as a one-stop shop. Furthermore, the team is very supportive of the academic research community, and overall responsive to customer inquiries!”

Michael Bazzell

Owner

IntelTechniques

“The WhoisXML History API has been a game changer for our online investigations, trainings, and books. We have uncovered the true owners behind numerous malicious domains, even though they currently possess "private" Whois registration.”

Flavio Critelli

Distinguished Professor of Digital Forensics

University of Perugia

“Whois XML is one of the most important tools we use for domain intelligence in the Bachelor's Degree program in Investigation and Security Sciences at the University of Perugia. In particular, we appreciate the reverse research from IP to Domain and Whois with query filters. The tool is comprehensive, providing detailed information such as phone numbers, names, and other details from Whois records. While many Whois records are now covered by privacy regulations, WhoisXML API provides access to all historical WHOIS records.”

Michael Roberts

Founder & Private Investigator

Rexxfield

“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.”

Larry Cameron

President and Founder

Paradigm Intelligence Ltd

“WhoisXML API is amazing for checking out the historic registration information of a domain, pivoting to locate the alternate registrations with the same details and also my cyber investigations. The data proved very useful when investigating pig butchering scams and domains that host child abuse material.”

Jacob Waltz

CEO/Founder

Intraframe

“Very useful for investigations, we can go back in history and see when domains were registered and who owned them at a certain time.”

David Pearson

CEO/Founder

Bayse Intelligence

“WhoisXML API builds out data sets that help users correlate attack infrastructure with related IP and WHOIS information.”