.io top-level domain
Registry endpoints and corpus statistics
Tracked domains
10,795
Full reports
1,234
DNSSEC signed (of analyzed)
17.1%
Security grades (of analyzed)
B:494 C:723 D:17
Registry RDAP service
No RDAP service registered with IANA for .io — lookups fall back to WHOIS.
Top .io domains
Top registrars for .io
NAMECHEAP INC231 domains
GoDaddy.com, LLC216 domains
GANDI SAS176 domains
Cloudflare, Inc.102 domains
MarkMonitor, Inc.48 domains