How to check one name across several endings
Type the name without an ending, tick the endings you care about, and run it. Up to twelve at a time. Each row is a separate question to a different registry, which is why they settle at slightly different speeds.
This is the tool for the moment you have picked a name and want to know what you can actually get. It is not a name generator and it does not suggest alternatives.
What do the four results mean?
| Result | Meaning |
|---|---|
| No registration found | No current registration was returned. Confirm eligibility and price with a registrar. |
| Taken | Somebody holds it. The registrar and expiry date are shown where published. |
| Cannot check | This checker has no usable RDAP service for that ending. Try the registry's or a registrar's own lookup. |
| Check failed | The registry rate limited us, refused, or did not answer. Also not a statement about the name. |
A failed or unsupported check leaves that row unresolved. It must not influence your shortlist as though it were a free name.
Why is a free name sometimes not for sale?
Because the registration record says nothing about price or eligibility. Registries reserve names, block whole categories, and price a great many ordinary strings as premium, which on newer endings can mean hundreds or thousands a year rather than the usual fee.
Before choosing an ending, check both the first-year and renewal prices, along with any eligibility conditions. A row with no registration record doesn't answer those questions.
Which endings should you check?
Start with the endings your intended audience will recognize and that you are eligible to register. The selection in this tool is not a recommendation or a complete purchasing search. RDAP coverage varies, especially for country-code endings; unsupported here does not mean uncheckable elsewhere.
If you're comparing a local business name, include the relevant country ending and check the registry's eligibility rules. If you're protecting an existing name, prioritize plausible confusion rather than treating every unchecked box as a risk. This tool doesn't provide trademark clearance.
Endings that cannot be checked are still selectable, and they say so plainly rather than being hidden from the list.
Why is the check limited to twelve endings?
Each ending is a separate request to a different registry, and registries limit how often any one source may ask. Every visitor here shares one outbound address, so one person checking fifty endings on repeat can get everybody throttled across every domain tool at once.
Hence the cap, plus a per-visitor limit and a shared budget per registry. If you hit a limit, the page says so rather than returning an empty result that looks like an answer.
How fresh and private are the checks?
Each selected domain goes through stack127's server to its registration service. Responses are cached by lookup URL without a requester identity in the cache. Registered responses can be reused for up to 24 hours and not-registered responses for up to one hour. A row's fetched time matters when a name has just changed hands or been released.
The result is a snapshot, not monitoring or a reservation. Confirm the name with a registrar before purchase.
Related tools
For one name with the full reasoning behind the answer, use the domain availability checker. To inspect the public record for a name that came back taken, use the domain registration lookup. To see every ending that exists and this checker's RDAP coverage, see the TLD directory.