List of all registered .IO domains
Below you can find a list of all known .io domains for download.
554,755 registered .IO domains.
We have collected data on 1,237,997 domains from British Indian Ocean Territory under the .IO top-level domain (ccTLD), of which 554,755 have been identified as actively registered.
| Type | Updated | Number of Domains | New Domains Today | |
|---|---|---|---|---|
| All registered .IO domains | May 06, 2025 | 554,755 | 13 | |
| All known .IO domains | May 06, 2025 | 1,237,997 | 13 | |
| Detailed .IO domain list | May 06, 2025 | 554,755 | 13 |
The standard list of registered .IO domains comprises one domain per line.
The complete list of all known .IO domains is available in CSV format with two fields: the first is the domain name, and the second is its status (free, registered, or deleted).
Detailed domain lists include the following CSV fields, when available:
- Domain Name
- Webserver
- Request Time
- Number of HTML Elements
- Google IDs
- DNS Servers
- IP Addresses
- Crawl Date
We also provide custom crawling services should you require additional data beyond the standard information provided.