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

6.7+ billion
Historical WHOIS records
582+ million
Domains tracked
2,864+
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.

You can also get a comprehensive ownership history of a given domain name by using our new Domain Research Suite Dashboard.

Fast, intuitive and responsive

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WHOIS History Search

Practical usage

Use WHOIS History API to look up the currently hidden secrets and identify an attacker’s historical footprints — before privacy records.

Investigate the last public record to uncover how a domain's ownership has changed. Use WHOIS History API to do in-depth research on a domain’s past and avoid potential liabilities.

Get in-depth insights on your customer base. Use WHOIS History API to conduct statistical and market share analyses to improve marketing strategies, zoom in on the right markets, and identify untapped opportunities.

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

Enterprise API Packages

API access through WhoisXMLAPI can be purchased as an annual subscription. The access pricing is based on the number of queries, which is measured monthly with per-minute rate limits. The pricing structure gives predictability to business planning and solution architecture.

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