Download .io Domain Names
Access our comprehensive database of .io domains. Whether you're tracking new domain registrations, analyzing active websites, or researching internet domain trends within the .io zone, our domain database is the ideal solution — and it's ready for download in CSV format.
We continuously monitor the internet to detect newly registered .io domains using DNS zone files, crawlers, and machine learning: In the past 24 hours, we have discovered 517 new .io domains.
Last Data Update: 2025-08-17 21:49:01
| Filename | Description | Domain Count | Filesize (uncompressed) | Filesize (compressed) | |
|---|---|---|---|---|---|
| io-domains-all.zip | All known .io domains | 1,519,464 | 20 MiB | 5 MiB | Download |
| io-domains-active.zip | Active .io domains | 1,136,235 | 15 MiB | 4 MiB | Download |
| io-domains-2025-08-17.zip | New .io domains 2025-08-17 | 477 | 7 KiB | 3 KiB | Download |
| io-domains-2025-08-16.zip | New .io domains 2025-08-16 | 535 | 8 KiB | 3 KiB | Download |
| io-domains-2025-08-15.zip | New .io domains 2025-08-15 | 619 | 9 KiB | 4 KiB | Download |
| io-domains-2025-08-14.zip | New .io domains 2025-08-14 | 630 | 9 KiB | 4 KiB | Download |
| io-domains-2025-08-13.zip | New .io domains 2025-08-13 | 668 | 10 KiB | 4 KiB | Download |
| io-domains-2025-08-12.zip | New .io domains 2025-08-12 | 746 | 11 KiB | 5 KiB | Download |
| io-domains-2025-08-11.zip | New .io domains 2025-08-11 | 686 | 10 KiB | 4 KiB | Download |
| io-domains-2025-08-10.zip | New .io domains 2025-08-10 | 572 | 8 KiB | 4 KiB | Download |
| io-domains-2025-08-09.zip | New .io domains 2025-08-09 | 621 | 9 KiB | 4 KiB | Download |
Information About the .io Domain Extension
The .io domain suffix is a Dataset (Country Code Top-Level Domain), managed by Internet Computer Bureau Limited. Our database contains a comprehensive list of known .io domains, helping businesses, researchers, and SEO professionals access up-to-date domain records with ease.
| Type | Dataset |
|---|---|
| Description | Country Code Top-Level Domain |
| Sponsor | Internet Computer Bureau Limited |
| Country | GB |
| Whois Server | whois.nic.io |
| SOA Server | a0.nic.io |
| SOA Email | hostmaster@donuts.email |
| Created | 1997-09-16 |
Why Choose DomainMetaData for .io Domain Lists?
Frequent Updates
Get fresh .io domain data every few hours.
Comprehensive Dataset
Access all 1,519,464 known .io domain records.
Verified Domains
Download 1,136,235 active and up-to-date .io domains.
Rich Metadata
Get optional .io data, including DNS records, and more.
Essential Domain Data for Professionals
- Domain Name & Registration Date
- DNS Servers, SOA Records, Mail Server
- Hosting Server, Website Category & Topic
- Robots.txt, HTTPS Status, HTTP Protocol Versions
How Industry Leaders Use Our .io Domain Database
Marketing &
SEO Research
Analyze website trends and track new .io domain registrations.
Cybersecurity &
Threat Intelligence
Monitor new .io domains for phishing, scams, or malicious activities.
Brand Protection &
Trademark Monitoring
Detect .io domain squatters and brand impersonators.
Lead Generation &
Data Enrichment
Use .io domain lists to find potential leads & business opportunities.
Download .io Domains Now!
- Get instant access to out comprehensive database of .io domains
- Bulk downloads in CSV format with rich metadata
- Updated daily with newly discovered domains
- Includes new, active, and historic .io domains