Check-Host.cc

Top-Level Domain

.us

Aggregated statistics for the top-level domain

Apex domains
we've enumerated
Subdomains seen
CT + DNS + brute
TLS certs
14,799
naming .us
Hosting ASNs
distinct origins

Domain Distribution

No apex enumerations

No subdomain discoveries yet for .us. Our CT-log + DNS-brute crawlers populate this as they pick up domains.

Top Certificate Issuers

Issuer (CA) Certs
Let's Encrypt 4,336
Amazon 2,074
DigiCert 1,490
YR1 1,154
YR2 1,116
Sectigo 760
GoDaddy 684
YE2 301
YE1 256
GlobalSign 202
WR3 175
Microsoft TLS G2 RSA CA OCSP 02 161
Cloudflare 145
Microsoft TLS G2 RSA CA OCSP 04 142
Microsoft TLS G2 RSA CA OCSP 10 130

Top Hosting ASNs

No hosting attribution yet

Forward-DNS crawler hasn't resolved enough .us apexes to BGP-attributable IPs.

Tech-Stack Distribution

No Wappalyzer detections

Body-fetcher hasn't covered enough .us sites yet for stack patterns to emerge.

Threat-intel hits

Feed Category Domains
openphish phishing 152
ℹ Coverage will improve significantly once CZDS zone-file access is granted for this TLD.