Domain name searchLookups

Domain availability checker. Is the name you want still free?

Type a full domain name, such as mybrand.com. The tool asks WhoisXML whether the name is registered and tells you yes or no. It does not sell domains, so it has no reason to hold on to the names you search.

1 provider in the catalog

Live price

reading live price

A full domain name, such as mybrand.com
you give it
1
providers
per call
billing

Try it now

Run domain availability checker here

Each run costs you nothing and is limited per hour. The results come from public data through looot. Heavier or repeated use belongs on your own looot account.

The full name with its ending, such as .com or .io.

Each run is free to you and limited per hour. The data is public. Powered by looot. Run it on your own looot account for heavier or repeated use.

Run it from your agent

Copy one prompt, give it to your agent.

Fill in the placeholder, paste it, and the agent runs the same job on your looot account and shows the cost. It can take a whole list, which the box above does not.

  • You give it: a full domain name, such as mybrand.com.
  • Billed per call, nothing while your agent is idle.
  • The agent shows the price before it calls.
Prompt: Domain availability checker
Use looot to check which of these domain names are free to register: [names]. 1. Set up https://looot.ai/skill.md. 2. Find a domain availability endpoint in the catalog and check its price before you call. 3. Run it once per name, with the full ending such as .com. 4. Return a table of name and available or registered, and give the total cost.

Give this to your agent
Setup command
set up looot for Domain availability checker - https://looot.ai/free-tools/domain-availability-checker/skill.md

What comes back

What your agent gets from domain availability checker

Field names as the providers return them. The exact set varies by endpoint, and your agent reads it from the catalog.

  • the domain
  • available or registered
  • what the check used

Providers

Who can do this job today

Your agent picks the endpoint. These providers offer one right now, with the live price of their cheapest.

Use it for

What people do with domain availability checker

  • Name a product

    Test the names on your shortlist and drop the ones that are already taken before you fall in love with one.

  • Pick an ending

    Check the same name in .com, .io and .ai and see which endings are still open.

  • Search without a store

    Check a name on a page that does not sell domains, so your search is not a lead for a reseller.

  • Agent name lists

    Give your agent fifty name ideas and get back only the ones you can register.

Set up once

Three steps. Your agent does the rest.

Keep going

More free tools

FAQ

Questions about domain availability checker

Type the full name, with its ending, in the box at the top of this page and run it. The answer says yes when no registration was found, or no when the name is registered.

From the WhoisXML domain availability service. By default it checks the DNS records of the name, which is fast and right for most names.

Almost always, but not every time. A name can be registered with no DNS records, or be reserved or premium at the registry. The checkout at a registrar is the final word, so check there before you plan around a name.

No. looot does not sell domains and does not keep the names you type. The check goes through a looot account made for these tools and shows in its run log.

Any ending that has a public registry, such as .com, .net, .org, .io, .ai or a country ending like .de. Type the full name each time.

Run the WHOIS lookup on this site to see the registrar and the expiry date. A name close to expiry may free up, and the registrar can tell you if the owner sells.

Yes. Each run on this page costs you nothing and is limited per hour. For a long list of names, your agent runs the same endpoint on your own looot account at the per-call price shown above.

Copy the prompt above into your agent with the looot skill.md link. It picks the availability endpoint, checks the price and returns one row per name.

Updated

For agents
tool
Domain availability checker
category
Lookups
input
A full domain name, such as mybrand.com
output
the domain, available or registered, what the check used
endpoint
whoisxml: whoisxml-domain-availability
price
per call, read live from the catalog on the web page
web tool
runs live on the page, free to the visitor and limited per hour
schedule
on demand
setup
https://looot.ai/free-tools/domain-availability-checker/skill.md
llms.txt
https://looot.ai/llms.txt
updated
2026-10-28
markdown /free-tools/domain-availability-checker.md

Run domain availability checker from your own agent.

The box on this page is limited per hour. Start your workspace, top up, and paste the prompt into the agent you already use for lists and repeated runs.

Start your workspace See all free tools