Domain Availability Checker

Search Engine Optimization
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Domain availability checker

Domain Availability Checker

Check instant domain availability against the live domain registry, not a cached guess. Enter a full domain to check it directly, or just a brand name to scan it across popular extensions at once.

Enter a full domain (example.com) to check just that one, or a bare name (example) to scan 8 popular extensions at once.

How this domain availability checker works

This tool performs a live lookup against the domain registry system rather than showing a cached or estimated result. For each extension checked, it first asks IANA which registry WHOIS server is authoritative for that extension, then queries that registry directly for the domain in question and reads the response it returns.

If the registry reports the domain as unregistered, it's shown as Available along with links to check pricing and register it at a few popular registrars. If the registry returns registration details, it's shown as Registered, and you can open the full WHOIS record - registrar, registration/expiry dates, status codes and name servers - on its own page.

Limitations: a live registry query can occasionally time out or be rate-limited, in which case a domain is marked "Could not verify" rather than guessed at. WHOIS response formats differ between registries, so field extraction is best-effort; the raw WHOIS response is always shown as the source of truth.


Welcome to SEOSiteKit

About Domain Availability Checker

Check domain name availability instantly against live registry WHOIS data. Enter a full domain to check it directly, or a bare brand name to scan it across popular extensions at once. Available domains link straight to registrar search pages; registered domains show a full WHOIS lookup with registrar, dates, status and name servers.