Find out all you have to know
about the history of a domain name's

5+ billion
Historical WHOIS records
309+ million
Domains tracked
TLDs tracked
10+ years
of data crawling
Database Complete history of WHOIS changes Domain name

This API will allow you to view relevant historical WHOIS records – and find out how a domain's ownership was changing. For the past 10+ years, we have been tracking WHOIS histories of hundreds of millions domains. These changes are parsed, processed and safely stored in our database – so as to be accessible by our WHOIS History API.

Get domain ownership history

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Historical records discovered:
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Practical usage

Use WHOIS History API to look up identifying information before privacy records.

Investigate the last public record to uncover how a domain's ownership was changing.

Find out who is committing online fraud or attacking the network. Use WHOIS History API to help identify an attacker.

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