Check domain availability in seconds
Before you fall in love with a name, make sure you can actually get the domain. This free checker looks up a name across .com, .net, .org, .io, .co, .ai, .app and .dev at the same time and tells you which ones are still free to register.
Enter a full domain like mybrand.xyz and that exact extension is checked first, followed by the popular alternatives. Taken domains link to a WHOIS lookup so you can see who owns them and when they expire.
Tips for finding an available domain
Search the bare name
Typing just "mybrand" checks eight popular extensions at once, so you can see every option side by side.
Act fast on good names
Short, pronounceable domains get registered quickly. If you find one you like, register it before someone else does.
Grab the .com too
If you build on .io or .ai and the .com is free, register it as well and redirect it – people will type .com out of habit.
Check the history
For an important brand, run a WHOIS lookup and check that a domain wasn’t previously used for spam before you commit to it.
Everything taken?
Most short, obvious names were registered years ago. Instead of guessing one name at a time, describe your project to the AI domain name generator and it will suggest brandable names that are already checked and available. Building a content site? Try the SEO-friendly domain generator instead.
Frequently asked questions
How do I check if a domain name is available?+
Type the name you want – with or without an extension – and press enter. Domize checks it across the most popular extensions at once and marks each one as available or taken. Available names link straight to a registrar.
How accurate is the availability check?+
Each domain is checked live against DNS and the registry’s WHOIS records, so results are accurate at the moment you search. A name can still be registered by someone else before you buy it, and some “available” names are premium domains that cost more than the standard price.
Is the domain availability checker free?+
Yes. You can check as many names as you like without an account. You only pay if you decide to register a domain, and that payment goes to the registrar.
What can I do if the domain I want is taken?+
Try a different extension (.co, .io or .app are often free when the .com is taken), add a short word like “get”, “try” or “hq”, or use the AI domain generator to find similar names. You can also run a WHOIS lookup to see when the domain expires and who owns it.
Which domain extension should I choose?+
.com is still the most trusted and the one people type by default. .io and .ai are popular for tech startups, .co is a short alternative to .com, and .org suits non-profits. If you only serve one country, a local extension like .de or .ca can work well too.