Domain Checker
Type a name — we check 16 popular TLDs in parallel via InstantDomainSearch (with an RDAP fallback). No signup, no ads.
Type a name above to check availability across 16 popular TLDs.
About the Domain Checker
The Domain Checker tests availability of a name across the 16 most popular TLDs in parallel — .com, .net, .org, .io, .co, .app, .dev, .ai, .xyz, .site, .online, .store, .tech, .info, .me, and .us — and shows the results in under a second. It's built for the moment when you've just thought of a name and want an honest, ad-free, no-signup answer to 'can I still get this?' before your idea evaporates.
Under the hood we query InstantDomainSearch (a fast availability API) with an RDAP fallback for any TLD that misses. Premium-listed names are surfaced with their asking price where available; registered names get a one-click WHOIS link so you can see who owns them, when they were registered, and how long the registration runs. Available names deep-link straight to a registrar so you can grab them immediately.
Use the checker for startup naming, product renames, defensive registrations across TLDs you want to lock down, and quick sanity checks before you print business cards. Pair with our WHOIS Lookup for full registration detail on any taken name and with our Domain Age Checker to see how long a competitor's domain has been active.
How to use this tool
- 1Enter the required value in the input field above (domain, IP, URL, or text depending on the tool).
- 2Click the action button to run the check — results are computed instantly from our edge network.
- 3Review the parsed output, key fields and any warnings shown in the result card.
- 4Copy the result, share the page URL, or jump to a related tool from the sidebar to continue debugging.
Key features
- 16 popular TLDs checked in parallel
- Premium prices shown when available
- One-click registration for available names
- One-click WHOIS on any taken name
- No signup, no ads, no rate-limited teaser results