# .io (British Indian Ocean Territory)
<a name="io"></a>

Also used as a generic TLD, often by computer-related organizations such as online services, browser-based games, and startup companies.

[Return to index](registrar-tld-list.md#index)

**Lease period for registration and renewal**  
One to ten years.

**Restrictions**  
Open to the public, with no restrictions.

**Privacy protection**  
All information is hidden except state/province and country.

**Domain locking to prevent unauthorized transfers**  
Supported.

**Internationalized domain names**  
Supported.

**Authorization code required for transfers**  
Yes  
The registry for .io domains also uses the authorization code as a single-use password for some operations, such as enabling or disabling privacy protection. If you want to perform more than one operation that requires a password, you must generate another authorization code for each operation.

**DNSSEC**  
Supported for domain registration. For more information, see [Configuring DNSSEC for a domain](domain-configure-dnssec.md).

**Deadlines for renewing and restoring domains**  
+ Renewal is possible: Until the expiration date
+ Late renewal with Route 53 is possible: Until 44 days after expiration
+ Domain is deleted from Route 53: 45 days after expiration
+ Restoration with the registry is possible: Between 45 days and 75 days after expiration
+ Domain is deleted from the registry: 90 days after expiration