Safely search for domain availability | WhoisXML API

Safely search for domain availability with Domain Availability Lookup

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

What is a domain availability lookup tool?

A domain availability lookup tool is one that goes through WHOIS records and checks the Domain Name System (DNS) to establish whether a domain is available for registration or already belongs to someone else.

Domain Availability Lookup

Why use Domain Availability Lookup?

  • Exhaustive

    Availability results are gathered by querying a WHOIS database that is updated daily and contains 10+ billion records.

  • Shareable results

    Each domain availability lookup report comes with a custom URL that you can share with your team members.

  • Safe domain search

    Every query made using Domain Availability Lookup remains strictly confidential.

Practical usage

Improve your domaining portfolio

Improve your domaining portfolio

  • Domain Availability Lookup lets you check if a domain name is available without going through a registrar, making your query private.

Boost your marketing efforts

  • Check if a domain in your contact list is still registered. If not, it may indicate that a supplier or customer is no longer in business.
Boost your marketing efforts
Update your blacklists

Update your blacklists

  • Check if a domain name previously used in a cyberattack is still active.

Get ready for the next step

  • Test the waters with Domain Availability Lookup before integrating its API version into your solutions or running more comprehensive domain analyses with WHOIS Lookup.
Get ready for the next step
Domain Availability Lookup | WhoisXML API

Get 100 free credits monthly. No credit card required.

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