
.io domains
A .io domain for startups and tech products
.io
- https://codeloop.io
- https://dataforge.io
- https://shipfast.io
What .io is for
The idea behind .io
.io is the country code of the British Indian Ocean Territory, in use since 1997. To programmers IO means input/output, so the extension quickly became the signature of startups and technical tools. Registration is open to anyone, from any country.
- 1
Startups
A short name for a new product, when the same name as a .com was taken long ago.
- 2
SaaS products and APIs
Your customer dashboard, your docs or your product API, at an address that sounds technical.
- 3
Open source projects
The home page of a GitHub project, a library or a tool for developers.
Addresses that could be yours
- https://codeloop.io
- https://dataforge.io
- https://shipfast.io
- https://apiflow.io
.io domain information
Everything to know before you register one, in one place.
- First year price
- Renewal price
- Type
- Country code (ccTLD): British Indian Ocean Territory
- In use since
- 1997
- Who can register
- Anyone, person or business, from any country
- Registration term
- 1 year, renewable every year
- Renewal
- Automatic every year. Turn it off and we email you 30, 7 and 1 days before it expires
- HTTPS and SSL
- SSL certificate included when you connect it to your Premium site
- Allowed characters
- Letters a to z, digits 0 to 9 and hyphens, but not at the start or end
- Length
- 1 to 63 characters before .io
- Owner
- You, registered in your own name
- Transfer
- Transfer code available 60 days after registration
- Refund
- Your payment is refunded if the registration fails
.io domains: frequently asked questions
No. Even though .io is a country code, registration is open to anyone, from any country, with no residency requirement.
Because it is short, free names are easier to find than with .com, and programmers read IO as input/output. Over time it became a sign that a product comes from the tech world.
It works, but most people link .io with technology. For a shop, a restaurant or an office, .com or .shop are usually clearer for customers.
Yes. Create your website for free, turn on Premium and choose Connect to a site under Domains. We add the DNS records and the SSL certificate, so your .io address opens over HTTPS within minutes.
Every extension and its price
Compare .io with the other extensions we sell and open any of them to see what it is for.
- .com
The most used extension in the world, a safe choice for any business.
First year - .net
The classic alternative when the .com name is taken, a good fit for services and tech.
First year - .org
For associations, foundations, communities and mission-driven projects.
First year - .io
A favorite of startups and tech products.
First year - .co
Short and modern, for companies and new brands.
First year - .me
Personal, for portfolios, online resumes and blogs.
First year - .dev
For developers, code projects and technical tools.
First year - .app
For apps and digital products.
First year - .shop
For online stores and businesses that sell products.
First year - .store
A clear name for any store, physical or online.
First year

From domain to website
Give your .io domain a website
Describe your business and AI builds a real website in minutes, for free. With Premium you put it on your .io domain, SSL included.