Get the registration details of up to 500,000 domains at once to speed up your investigation or research. Test Bulk WHOIS Lookup now. Download our product sheet to learn more.
A bulk WHOIS lookup is a means to get details that include registrant name, organization, contact email address, and much more with a single query. Just upload a comma-separated values (CSV) file containing the list of domains you want information on or copy and paste the list into the input box and wait for your results.
Bulk WHOIS Lookup is a web-based service that you can access anytime you need to query a list of domains for ownership data. All you need is a WhoisXML API subscription to get the results you require.
Our bulk WHOIS lookup tool pulls data from a domain database that contains more than 16.7 billion WHOIS records that cover 7,596+ top-level domains (TLDs).
Every bulk domain lookup you make is sure to get the latest registrant information as our WHOIS database gets daily updates. That assures you of relevant and timely data for your business needs.
Bulk WHOIS Lookup lets you choose between uploading a CSV file or copying and pasting your list into the interface when making queries.
“Keeping track of new domain registration activity is essential in today's digital economy. We look forward to continuing our collaboration with WhoisXML API to help customer leverage critical domain insights in a secure cloud environment that aligns with their data privacy and governance requirements.”
“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.”
“Very useful for investigations, we can go back in history and see when domains were registered and who owned them at a certain time.”
“WhoisXML API builds out data sets that help users correlate attack infrastructure with related IP and WHOIS information.”