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

This API will allow you to view relevant historical WHOIS records – and find out how a domain's ownership was changing.

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100 free credits monthly. No credit card required.

7.0+ billionHistorical WHOIS records
582+ millionDomains tracked
2,864+TLDs tracked
10+ yearsof data crawling

Benefits

  • Complete history of WHOIS changes

    Find out how a domain’s ownership was changing using the world’s largest constantly updated database with billions of existing records.

  • Unified & consistent

    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.

Practical usage

Cyber-security research

Cyber-security research

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

Online fraud prevention

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

Digital marketing

Get in-depth insights into 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.

Digital marketing
Domain name’s research

Domain name’s research

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

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
Website Contacts & Categories Database

Get precise and relevant Historic WHOIS Data Feed

Get over 7+ billion historic WHOIS records as database dumps (MYSQL or MYSQL dump) and Comma Separated Values (.CSV) files. All the data is well-parsed and normalized to a consistent format for easy integration with your business processes.

Order database
WHOIS History API | Whois XML API

Get 100 free credits monthly. No credit card required.

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