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Register a .io domain now

Showcase your creativity with a .io domain name.

Enter at least on character
.io
$33 / 1st year then $ 60 /year
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.tech
$1 / 1st year then $ 65 /year
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.app
$10 / 1st year then $ 25 /year
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.net
$9.60 / 1st year then $ 16 /year
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Popular with tech startups and more

Why register a .io domain?

Although the .io domain names have been around since as early as 1997, it is still less common than other generic and extremely popular top-level domains (TLDs). The .io country code domains are an attractive option amongst the tech and startup scene, largely due to the fact that the letters stand for input/output.

Input/output represents the fundamental concept of computers: every input results in an output. Businesses, companies and individuals alike can benefit from the creative freedom of choosing their ideal domain name; a meaningful, unique and concise name may be what it takes to position your business ahead of the competition.

More unique domains

.io domain logo

What does the .io domain extension stand for?

Despite its popularity amongst the tech industry, where the .io domain is commonly known as an abbreviation for input/output, the .io domain name in fact stands for the British Indian Ocean. As with most TLDs, each country or territory is assigned its own two-letter country code domain. Other country code top-level domains (ccTLDs) include .ca for Canada and .co.uk for the United Kingdom.

In recent years, it is not only the tech and startup industry that has been taking advantage of the catchy country code domains, but also brands or words that are complemented by the .io name such as www.aud.io or www.mustach.io. This has naturally resulted in fewer businesses actually operating in the British Indian Ocean area using this domain extension. It has therefore become less of a representation of the British Indian Ocean, and more of a generic TLD.

Success on the web with your .io domain

Learn more about the benefits of .io domain names from IONOS.

.io domain features
Available

Minimum and maximum length

3-63 characters

Duration of registration

Usually a few hours

Registration policy

https://www.nic.io/policy.htm?=undefined - - "https://www.nic.io/policy.htm"

Email account with 2 GB mailbox space

Unlimited subdomains to structure your website

1 SSL certificate per domain registry

Advanced DNS management

Whois privacy included

24/7 customer support

Fast, simple domain setup

Secure your domain from hijacking risks with domain lock

Special offers for IONOS customers

Minimum and maximum length

.io domain features

Available

3-63 characters

Duration of registration

.io domain features

Available

Usually a few hours

Registration policy

.io domain features

Available

https://www.nic.io/policy.htm?=undefined - - "https://www.nic.io/policy.htm"

Email account with 2 GB mailbox space

.io domain features

Available

Unlimited subdomains to structure your website

.io domain features

Available

1 SSL certificate per domain registry

.io domain features

Available

Advanced DNS management

.io domain features

Available

Whois privacy included

.io domain features

Available

24/7 customer support

.io domain features

Available

Fast, simple domain setup

.io domain features

Available

Secure your domain from hijacking risks with domain lock

.io domain features

Available

Special offers for IONOS customers

.io domain features

Available

.io domain

FAQ – Frequently asked questions

Getting a .io domain with IONOS couldn't be any easier. Simply enter your desired web address in the search bar and with just the click of a mouse, you'll find out if it is still available. If so, you can buy your .io domain directly, easily and cheaply. Our tip: make sure you get the domain you want before someone else does. Otherwise, it may already be taken, and can only be acquired if the website owner violates your name or trademark rights. At worst, this will then require litigation. All of this can be avoided by securing your .io domain early.

As soon as you have checked if your .io domain is available, you can also check if there are other domains available that you are interested in. You will automatically receive suggestions for additional domain names or top-level domains that may not have crossed your mind yet, but which may also be of interest to you. If this is the case, you can also place the corresponding domains in your shopping cart, and complete the purchase.

Learn more about domains

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