.io

Tech & Startups

The domain of the tech scene. Popular with startups, developers, and SaaS products due to its Input/Output association.

€66.89 / year

The domain of the tech scene

.io is the country code for the British Indian Ocean Territory, but has long since detached from this geographic meaning. Through its association with "Input/Output", it became the preferred domain of the tech industry.

Startups, SaaS products, developer tools, and API services use .io to signal their technical focus. The extension conveys innovation, modernity, and technical competence.

Well-known examples like GitHub.io, Socket.io, or Figma.io show that .io has become mainstream and is perceived by users as a credible tech domain.

At a Glance

Registry: Identity Digital
Introduced: 1997
Origin: British Indian Ocean Territory
Minimum length: 2 characters
IDN (special chars): No
Restrictions: None

Who is .io intended for?

Tech startups, SaaS products, APIs, developer tools, open-source projects, developer portfolios. Anyone in the tech industry will find that .io immediately appeals to the right audience.

I/O

Input/Output – the association that made .io the tech domain.

.dev Developers +

.io Tech/Startups

+ .app Apps

Popular tech domains.

.io

Tech signal to audience
Short names available
Modern image
Popular with startups

.com

More neutral
Almost everything taken
Better known
Broader audience

No restrictions

Anyone can register a .io domain. There are no residency or company requirements.

Typical use case

A startup is developing a new developer tool. Under devtool.io it's immediately clear: This is about technology. The domain fits the target audience perfectly and conveys the right image from the start.

Notable examples

GitHub.io, Socket.io

Many successful tech projects use .io as their primary domain.

Premium character

The higher price filters spam and signals credibility. Those who use .io mean business.

€66.89

pro Jahr, inkl. MwSt.

DNS management included
SSL certificate included
No setup fee

Frequently Asked Questions

Everything you need to know about .io registration

How much does a .io domain cost?

A .io domain costs €66.89 per year. The price applies to both new registrations and transfers. There is no additional setup fee.

Why is .io more expensive than other domains?

.io is a premium domain with high demand in the tech industry. The higher price reflects market value and helps ensure fewer spam domains are registered.

Who is .io suitable for?

.io is ideal for tech startups, SaaS products, APIs, developer tools, and anyone working in the tech industry. The extension signals technical competence and innovation.

How quickly is my domain active?

Registration happens in real time. Once the domain is confirmed, you can create DNS records and use the domain immediately.

Is .io a real country code?

Yes, .io is the ccTLD of the British Indian Ocean Territory. However, it has long since detached from this geographic meaning and is used worldwide as a tech domain.

How do I transfer an existing .io domain?

Request an auth code from your current provider and enter it during ordering. The transfer takes a few days and costs the regular annual price of €66.89.

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