Domain Availability API | Whois XML API

Find out if a domain name is available to be registered

The most accurate domain availability checker offered on the market. The first 500 domain name availability lookups are complimentary when you register for a free developer account.

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500 free credits monthly. No credit card required.

7.0+ billionWHOIS records
582+ millionDomains tracked
2,864+TLDs tracking
10+ yearsof data crawling

Benefits

  • Checks domain availability for registration.

  • Query results, with both parsed fields and raw texts, are returned in popular XML & JSON formats.

  • API works for nearly all of the TLDs.

  • Real-time WHOIS data ensures that only the most up to date and accurate information is delivered.

Practical usage

Domain name’s research

Domain name’s research

Registrars and Domainers use the tour tool to find out if domains are available for registration.

SEO optimization

Check the availability of recently expired domains which have some traffic on them.

SEO optimization
Domain Availability API | Whois XML API

Get 500 free credits monthly. No credit card required.

Get started

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