.IO Domain Name Rules and Requirements

.IO Domain Name Rules/Requirements

.IO Domain Registration:

• Must use: 3 - 63 characters 
• Can use: Letters (a-z characters), numbers (0-9) and hyphens (except in the 1st or last characters of the domain name) 
• Cannot use: Special Characters (e.g., & and #) 
• IDN: Supported 
• Registration length: 1-10 years 
• DNSSEC: Supported 

Renewal and Auto Renewal:

• Renewal length: 1-10 years 
• If you have auto-renew enabled, we’ll attempt to charge the associated payment method and renew your .io domain on its expiration date. 
• If auto-renew fails or isn't enabled at all, we’ll park your .io domain. A parked domain will display a temporary web page when the domain name is entered in a web browser. 
• If the domain isn't manually renewed within 40 days following expiration, we cancel it and remove it from your account. 

Domain Name Transfer:

• Transfer to BigRock: Supported 
• Transfer away from BigRock: Supported 
• Domain Privacy-Protection: Supported 
• Contact Updates: Supported 

Name Servers and Child Name Servers: 

• Each .AI domain name needs to have at least 2 Name Servers and may have up to 13 Name Servers. 
• There is no limitation on the number of Child Name Servers you may create. 
• You may associate upto 13 IP Address per Child Name Server. 
• You may associate IPv6 Address in Child Name Servers. 
• You may modify both Name Servers as well as any Child Name Servers associated with your .AI domain name.