Search .io Domain Availability

The go-to domain for SaaS companies, developers, and tech innovators. Short, memorable, and globally recognized. Trusted by saas companies, software developers, and web apps.

How do I check if a .io domain is available?

To check if a .io domain is available, enter your desired brand name into Namecheckly's .io checker. We query the global registry database in real time to show you if the domain is registered or available for purchase. You only pay if you decide to buy the domain; the search itself is 100% free and requires no signup.

.io extension · Free no signup · Instant results

Check .io availability

How It Works

Type Your Desired Name

Enter the name you want to register in the search box above. Do not include the .io extension, just the brand name.

Instant Verification

We verify the global WHOIS and registry databases in real time to see if the .io domain is available or taken.

Secure Your Domain

If available, secure it immediately before someone else registers it. We also show alternative extensions to protect your brand.

Register Your .io Domain Today

Desirable .io names are highly contested by tech startups. Claim yours while it's still unregistered.

Common Questions about .io

What does .io stand for?

It is the country code for the British Indian Ocean Territory, but in the tech world, it is universally recognized as standing for Input/Output (I/O), making it perfect for tech companies.

Is .io good for SEO?

Yes. Google treats .io as a generic top-level domain (gTLD), meaning it ranks globally just like a .com or .net.