Register your .io domain
From $69.99 per year
.io is the country domain of the British Indian Ocean Territory. Because "I/O" means input/output in computing, it has become the favourite address of start-ups, software products and developer tools around the world, and names directly under .io are open to anyone.
We check .io first, then show the same name in our other extensions.
Why register a .io domain?
A .io name instantly says technology. It is short, modern and often still free in names that are long taken in .com.
- Popular with start-ups, SaaS products, apps and developer tools.
- Open worldwide, with no documents.
- Privacy is available, so your personal details can stay private.
.io at a glance
| Registration price | $69.99 per year |
|---|---|
| Renewal price | $69.99 per year |
| Who can register | Anyone, anywhere can register a name directly under .io (yourbrand.io). |
| Documents required | None. The registry requires accurate and up-to-date contact details, and can delete a domain registered with false ones. |
| Registration periods | Registered in whole years. At DomainSouq you can register for 1 to 5 years at a time; the terms available are shown when you add the domain to your cart. |
| WHOIS privacy | Available. Our ID Protection keeps your personal contact details out of public WHOIS. |
| Restrictions | Letters a-z, numbers 0-9 and hyphens; a name cannot start or end with a hyphen. A domain used for abuse such as malware, phishing or infringement can be suspended. |
| Expiry and deletion | Renew before the expiry date to keep your .io name working; after it expires it stops working and is deleted if it is not renewed. We email you 30, 7 and 1 days before expiry. |
Frequently asked questions
Can anyone register a .io domain?
Yes. Names directly under .io are open worldwide and no documents are needed. Your contact details must be accurate.
Why do tech companies like .io?
In computing, I/O stands for input/output. The extension is short and modern, and good names are often still free in .io when they are taken in .com.
Is .io good for search engines?
Yes. Google treats .io like a generic extension such as .com, so it is not tied to one country in search results.
Can I keep my details private?
Yes. Our ID Protection keeps your personal contact details out of public WHOIS.
How long can I register a .io for?
You register in whole years, from 1 to 5 years at a time here. The terms available are shown in your cart before you pay.