Top-Level Domain
.io
Aggregated statistics for the top-level domain
Apex domains
723,895
we've enumerated
Subdomains seen
10,356,609
CT + DNS + brute
TLS certs
87,925
naming .io
Hosting ASNs
15
distinct origins
Tech-Stack Distribution
No Wappalyzer detections yet
Body-fetcher hasn't covered enough .io sites yet for stack patterns to emerge.