Top-Level Domain
.io
Aggregated statistics for the top-level domain
Apex domains
710,070
we've enumerated
Subdomains seen
9,891,299
CT + DNS + brute
TLS certs
85,701
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.