Domain Name Search
Check whether a domain name is available across ten popular TLDs at once, using live RDAP registry data queried from our EU servers.
About Domain Name Search
Domain Name Search takes a single base name - just the label, with no dot or extension - and checks it against ten popular top-level domains simultaneously: .com, .net, .org, .eu, .fr, .de, .io, .dev, .app and .co. For each one it returns a clear verdict of available, taken, or unknown, so you can see in a single pass which extensions are still free.
Under the hood the tool uses RDAP (Registration Data Access Protocol) rather than scraping free-form WHOIS text. RDAP is the IETF-standardized, JSON-based successor to WHOIS, and it returns structured data with consistent status codes. A 404 response means no registration record exists for that exact domain (available); a returned registration object means the name is taken; and a registry error or restriction is reported honestly as unknown rather than guessed.
Availability reflects the registry's state at the exact moment of the query, and a name can be registered seconds later by someone else. Some country-code TLDs rate-limit or restrict RDAP access, which is why a result may come back as unknown - those should be confirmed directly at a registrar. The check is entirely read-only.
Queries run from our EU infrastructure. The name you type is used only to run the lookup: we do not store your searches, sell them as leads, or front-run them by pre-registering the domains you check.
How to use it
- 1Type the base name you want to check - just the label, using letters, digits and hyphens only, with no dot or extension.
- 2Run the search; the server queries RDAP for all ten TLDs in parallel and returns a result for each.
- 3Scan the results: available means the name is free at that registry, taken means it is already registered, and unknown means the registry gave no definitive answer.
- 4Confirm any promising available name at a registrar before you rely on it, since registry state changes continuously.
Common use cases
- -Brainstorming a brand or project name and checking .com, .io and .dev availability in one pass
- -Validating a European presence by testing .eu, .fr and .de alongside generic extensions
- -Checking whether defensive TLD variants of an existing brand are still free to register
- -Quickly ruling out names that are already taken before a naming meeting
- -Choosing a name for a new app that also needs a matching .app or .dev domain
Frequently asked questions
- What does "available" actually mean in this tool?
- It means the registry returned no registration record - an RDAP 404 - for that exact domain at the moment of the query, so the name appears free to register. Because registry state changes constantly, confirm it at a registrar before you rely on it.
- Which TLDs does the domain search check?
- It checks ten popular extensions at once: .com, .net, .org, .eu, .fr, .de, .io, .dev, .app and .co. You enter only the base name and the tool appends each extension for you.
- What is RDAP and why use it instead of WHOIS?
- RDAP (Registration Data Access Protocol) is the IETF-standardized, JSON-based successor to WHOIS. It returns structured, machine-readable data with consistent status codes, which makes availability checks more reliable than parsing free-form WHOIS text.
- Why do some results say "unknown"?
- Unknown appears when a registry does not answer definitively - for example due to rate limiting, an RDAP service being down, or a ccTLD with restricted access. The tool reports this honestly instead of guessing availability.
- Does searching a name reserve or register it?
- No. This is a read-only availability check. It does not reserve, register, or store the names you look up, and it never front-runs your searches by pre-registering them.
- Can I search a domain that already includes the extension, like acme.com?
- No - enter just the label, such as "acme". The search adds each of the ten supported extensions for you, so a dotted form is unnecessary and will be rejected by the input.