Domain & DNS Tools

Domain Availability Checker

See whether the domain you have in mind can still be registered. Each name is checked against the registry's own records, and for names that are taken you get the registrar and the registration and expiry dates.

  • Encrypted connection
  • No sign-up
  • Free to use

Enter a name without an ending to check it under .com, .net, .org, .io, .co, .dev, .app and .ai at once.

How to use Domain Availability Checker

  1. Type a full domain such as mybrand.com, or just a name such as mybrand.
  2. Select Check availability.
  3. For a bare name, compare the results for .com, .net, .org, .io, .co, .dev, .app and .ai.
  4. Register an available name at a registrar of your choice, or look at the details of a taken one.

Domain Availability Checker features

Authoritative answers

A name is shown as available only when the registry reports no registration and the name has no DNS delegation.

Eight endings at once

Enter a name without an ending to compare the most popular top-level domains in one go.

Details for taken names

Registrar, registration date and expiry date for names that already belong to someone.

Clear third state

When a registry cannot be queried, the result is “cannot be determined” rather than a guess.

No sales funnel

The tool only reports what registries say; your searches are not stored or used to reserve names.

Validation

Names with invalid characters are rejected before any lookup.

When to use Domain Availability Checker

  • Choosing a name for a new business, product or project.
  • Checking whether the .com that matches your brand is still free before printing anything.
  • Finding out when a name you want will expire.
  • Comparing alternative endings when the first choice is taken.

Domain Availability Checker FAQ

How does the checker know that a domain is available?

It asks the registry responsible for the ending through RDAP, or through WHOIS where RDAP does not exist. If the registry answers that no such domain is registered, and the name also has no name servers in DNS, it is reported as appearing available.

Why “appears available” instead of “available”?

The registry record is the best public source, but the final answer comes when you try to register. Some names are reserved by the registry, blocked for legal reasons, or offered only as premium names at a much higher price. A registrar's checkout will show these cases.

Why can some domains not be checked?

A few country-code registries offer no public lookup service or restrict automated queries. For those endings the result is “cannot be determined”. The registry's website or a registrar that sells the ending can tell you more.

The domain is taken but shows no website. Can I still get it?

Possibly. Many registered names are unused. You can contact the owner through the registrar's contact channel, use a broker, or wait for the expiry date, although most unused names are renewed automatically.

Which characters can a domain name contain?

Letters a to z, digits and hyphens, with between 1 and 63 characters per label. A hyphen cannot be the first or last character. Upper and lower case are treated as the same. Names with accented or non-Latin letters are possible as internationalised domain names under many endings.

Do you store or sell my searches?

No. The names you check are sent to the registry lookup and are not logged or offered to anyone. Registry answers are cached for a short time to avoid repeated queries.

Choosing a domain that is actually free

There is exactly one authority on whether a domain exists: the registry that operates its top-level domain. Tools that estimate availability by checking whether a website loads or whether DNS records exist get it wrong often, because a large share of registered names have no website at all. This checker goes to the registry first and uses DNS only as a second confirmation, so a name is never called available just because nothing is hosted on it.

If your first choice is gone, the multi-ending search helps you see the alternatives quickly. A few points are worth weighing. The .com ending is still what people type by default, so owning a different ending while a competitor holds the .com can send visitors and email astray. Country endings signal a local presence and are often easier to get. Newer endings such as .dev and .app are well suited to technical products, and both require HTTPS, which browsers enforce.

Before registering, spend a minute on the name itself. Say it aloud to check that it can be understood over the phone, avoid hyphens and doubled letters that invite typing errors, and search for existing trademarks in your field. A name that is free at the registry can still infringe someone's rights.

Finally, register through a registrar account that belongs to the business rather than to an individual employee or an agency, turn on automatic renewal, and keep the contact email current. Most lost domains are lost through administrative neglect, not through competition.

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