The Domain Availability tool checks whether a domain name is available for registration - querying live registry and WHOIS servers in real time across 1,528+ TLDs to return an immediate, accurate availability status. Whether you're naming a startup, building an API-driven registration platform, or monitoring for expired competitor domains, accurate availability data is essential.
Securing the right domain name is the first digital step for any business. Use Domain Availability to check your desired name across multiple TLDs simultaneously - comparing .com, .net, .io, .ai, and country-code options. If your first choice is taken, pair with the Domain Discovery Tool to find what related domains are available.
Domain registrars and name-search platforms integrate the Domain Availability API to power real-time availability checks within their checkout flows. The API returns structured availability status, WHOIS data, and pricing signals for each queried domain - enabling seamless search-to-register experiences. Check the API documentation for integration specs and the Pricing page for API plan options.
Domain investors monitor expiring domains and use availability checks to verify the moment a target domain enters the add-grace period and becomes registrable. Bulk availability checking across large lists of candidate expired domains - via the API - is standard practice for identifying high-value drops before competitors.
Brand protection teams check domain availability across all relevant TLDs for new product names and trademarks before public launch - preemptively registering variations to prevent cybersquatting. Legal teams verify availability status as part of UDRP and trademark dispute evidence gathering. For discovering already-registered domains containing brand terms, use Domain Discovery.
Availability status can change in seconds during high-demand drops. If a domain is available but highly desirable, act quickly - or use a drop-catching service to automate registration the moment it becomes available.
