域名后缀指南
.IO 域名注册与 WHOIS
分析 .IO 域名的注册局运营商、字符限制、IDN 支持状态以及特定注册指南。
后缀元数据
最小
1 字符
最大
63 字符
IDN
否
类别:
general
注册资格
此后缀对全球任何个人或企业开放，没有严格的监管约束政策。
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概述与注册指南
The .IO domain extension is .io is the ccTLD of British Indian Ocean Territory, managed by Identity Digital (formerly Afilias). It has become a globally popular de-facto gTLD in the tech and startup ecosystem due to its I/O (input/output) connotation. No local presence requirement. Minimum label: 1, Maximum: 63. IDN not supported. It requires a minimum label length of 1 characters and supports up to 63 characters. It does not support IDN characters, meaning only standard English characters are allowed. Registration is completely open and unrestricted globally to individuals and organizations.
要搜索在此后缀下注册的特定域名所有者，您可以在上方的 WHOIS 门户中进行实时查询。注册局运营商数据库将实时响应服务器详情、域名状态代码、注册/到期日期以及域名服务器数组。
常见问题 (FAQ)
.io is the ccTLD of British Indian Ocean Territory, managed by Identity Digital (formerly Afilias). It has become a globally popular de-facto gTLD in the tech and startup ecosystem due to its I/O (input/output) connotation. No local presence requirement. Minimum label: 1, Maximum: 63. IDN not supported.
No, registration is completely unrestricted. Anyone can register a .IO domain on a first-come, first-served basis.
No, only standard alphanumeric English characters (a-z, 0-9) and hyphens are supported.
A .IO domain name must be between 1 and 63 characters long.