Check-Host.cc

Top-Level Domain

.us

Aggregated statistics for the top-level domain

Apex domains
1,174,849
we've enumerated
Subdomains seen
CT + DNS + brute
TLS certs
14,893
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 4,345
Amazon 2,074
DigiCert 1,495
YR1 1,173
YR2 1,144
Sectigo 762
GoDaddy 687
YE2 307
YE1 266
GlobalSign 202
WR3 175
Microsoft TLS G2 RSA CA OCSP 02 162
Cloudflare 145
Microsoft TLS G2 RSA CA OCSP 04 145
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.