The domain for start-ups, open source & APIs.

.io domain

44.99 usd / yr

Limited time pricing. Normally 59.99 usd / yr

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.io domains, a digital workspace for your digital start-up.

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Why do I need a .io domain name?


Have you ever noticed how many words end with “io”? There’s portfolio, studio, audio, and cheerio to name a few! .io domain names are great for wordplay, and give brands an opportunity to get their name in a shorter website address.


To the tech and software development world, “io” is a common industry term so it speaks directly to that audience. However, .io domain hasn’t always been used by the tech industry. It wasn’t until recently that .io domain began trending for input/output, that it really took off.

Shorter Names, Greater Availability

When it comes to domain names, the fewer characters the better. An advantage of .io doman is that it is only two characters long instead of traditional top-level domains like .com. Since not everybody is an early adopter like you, there are many great domain names still available!

Some examples of .io sites already seeing the benefits!

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What is .io? It’s also the official domain of British Indian Ocean Territory

Unlike some country code domains, .io domains are unrestricted meaning no weird requirements or documents needed. There are also no premium domain names so you can get any available name for an amazing price.

country flag for British Indian Ocean Territory

How do I transfer a .io domain?

Transferring your .io domain name is a fast and easy process. Get started by clicking "Transfer Now" below, and our Domain Specialists will help you navigate the process. Every .io domain transfer into 101domain includes an additional year(s) renewal, so you're not losing any time, just saving money. Transferring your domain gives you access to the largest portfolio of extensions in the business and 101domain's powerful domain management system.

Starting @ 49.99 USD / yr

Transfer Now
FAQs for .io
What is the registration term allowed for .io domain names?
.io domain names are available for 1-10 years.
How long does it take to register my .io domain name?
The domain registration time frame for .io during general availability is Instant.
What are the characters and valid character lengths for .io domain names?
Domain Names must:
  • have minimum of 2 and a maximum of 63 characters;
  • begin with a letter or a number and end with a letter or a number;
  • use the English character set and may contain letters (i.e., a-z, A-Z),numbers (i.e. 0-9) and dashes (-) or a combination of these;
  • neither begin with, nor end with a dash;
  • not contain a dash in the third and fourth positions (e.g. www.ab-; and
  • not include a space (e.g. www.ab
Trustee Service for .io
Trustee Service helps you satisfy most local presence requirements when there are restrictions on registering a domain name. Trustee Service is not available for this extension.
How do I host my .io domain name? offers hosting and email service for .io. You can order hosting, email service and SSL certificates at checkout or you can contact sales.
Can I transfer out my domain if I’m using your Trustee Service?
Trustee service is non-transferable. If you are using our Trustee Service, you must update ownership according to .io requirements before transfer out can be started.
Can I hide my registration information (Private Registration)?
Yes. You can activate Private Registration during the purchase of a new domain.
Grace period for .io domain name?
Grace periods vary for country code Top Level Domains (ccTLD) including Internationalized Domain Names (IDN). Some registries require renewal up to 60 days in advance of the domain name expiration date. It is your responsibility to pay for your Renewal Fees in advance of the due date specified by 101domain regardless of the domain name expiration date. Failure to pay your Renewal Fees prior to the due date will result in a fee of $150 to renew your .io domain. There may be a restore period between when the domain expires and when the domain can be registered again. In the event that you do not pay by the renewal date, your site may be inaccessible during this time so it is very important that you renew this extension before the renewal date.
Who is the registry that manages .io domain names?
You may visit them here: NIC.IO (run by Internet Computer Bureau).
.io Domains Dispute & Policy

Dispute resolution policy for Domain Names registered with NIC.IO

1.1 The Applicant is responsible for the selection of its own domain name and by submitting its application, the Applicant represents that:

(a) the registration of the domain name and any other listing information, to the best of the Applicant's knowledge, does not interfere with or infringe upon the rights of any third party;
(b) the registration will not be used for an unlawful purpose;
(c) the information provided in its application is accurate. Any information in the application found to be false may lead to the cancellation of the registration.

1.2 NIC.IO has no obligation to verify any information submitted to it by any Applicant and may rely upon the above representations.

1.3 The Applicant shall hold NIC.IO and any of its directors, officers, employees and agents harmless from any claim by a third party arising out of or in connection with the registration or use of a domain name or any other listing information.

2.1 NIC.IO shall not act as arbiter of disputes between the Applicant and a third party arising out of or in connection with the registration or use of a domain name or any other listing information.

2.2 The Applicant shall promptly notify NIC.IO of the commencement of any legal proceedings arising out of or in connection with the registration or use of a domain name or any other listing information. Following such notification, no copies of any communications between the parties to such proceedings shall be transmitted to NIC.IO.

The Applicant submits to the non-exclusive jurisdiction of the English courts for purposes of any court action brought against the Applicant arising out of or in connection with the registration or use of a domain name and the Applicant waives all rights to challenge such jurisdiction.

3.2.1 Any third party may bring a claim against the Applicant arising out of or in connection with the registration or use of a domain name or any other listing information before a WIPO (“World Intellectual Property organisation”) Arbitrator in accordance with the WIPO Expedited Arbitration Rules, As Adapted.

3.2.2 The proceedings before the WIPO Arbitrator shall be initiated by the filing of a Request for Arbitration with the WIPO Arbitration and Mediation Center.

3.2.3 Without prejudice to any determination of the WIPO Arbitrator with respect to the appointment of the costs of the arbitration and the provision of security for claims and costs in accordance with the WIPO Expedited Arbitration Rules, As Adapted, the remedies that may be awarded by the WIPO Arbitrator shall be limited to: (1) the provisional suspension of a registration for the duration of the proceedings, (2) the cancellation of a registration, and (3), subject to the agreement of the parties, a modification of the registration.

4. NIC.IO is bound to implement any order or decision of a court that is enforceable against it and any order or decision of a WIPO Arbitrator. The Applicant waives any right to pursue a claim against NIC.IO arising out of or in connection with the implementation by NIC.IO of any such order or decision, including the right to seek an injunction barring their implementation. The Applicant also shall hold NIC.IO and any of its directors, officers, employees and agents harmless from any such claim by a third party.

5. Where NIC.IO has been notified that legal proceedings have been commenced in relation to an Applicant’s entry, NIC.IO shall have the right to attach a notice to this effect to such entry and to bar the Applicant from modifying the entry during the course of the proceedings.

6.1 All notices in a WIPO arbitration shall be in accordance with the relevant provisions of the WIPO Expedited Arbitration Rules, As Adapted.

6.2 All notices in other legal proceedings shall be in writing and shall be delivered by hand, fax transmission, registered mail or other means of communication that provide a record thereof.

6.3 The Applicant is under the obligation to keep its contact details and in particular the e-mail address of its Administrative Contact specified in the Applicant's registration at all times up to date in accordance with article 4.2 of the Terms and Conditions. The Applicant acknowledges that such e-mail address may be relied upon for the purpose of serving any notices concerning a dispute under the provisions of this Policy and, in particular, for the purpose of serving the Request for Arbitration.

Domain Requirements for .io
Are Individual .io domain registrations allowed? Yes
Company or legal entities registrations allowed for .io? Yes
Are there requirements, documents, or information needed for .io? No
Are some .io domain names restricted? Yes
Obscene, offensive use, and use contrary to statutory laws of any nation is prohibited. See FAQs for complete restrictions.
Does .io domain have a special use? No
Other information I need to know about .io? No
Are there any additional fees for .io? No
Do I need a trademark/brand name to register .io? No
Private Registration service available? Yes
Trustee / Proxy service offered? Fees? No

How do I renew a .io domain?

Renewing your domain name is simple! Just click "Renew Now" below, or log into your Account Manager, select your .io domain name that you would like to renew, select the term of your renewal, and check out. That's it!

We also offer Auto-Renew—a great way to keep your domain name up-to-date without having to worry about letting them accidentally expire. Check your Account Settings to find out if you have it enabled.

Starting @ 59.99 USD / yr

Renew Now