Check-Host.cc

Top-Level Domain

.at

Aggregated statistics for the top-level domain

Apex domains
409,493
we've enumerated
Subdomains seen
1,725,566
CT + DNS + brute
TLS certs
14,275
naming .at
Hosting ASNs
distinct origins

Domain Distribution

Apex domains with the most known subdomains — large orgs, telecoms, hosters.

Top Certificate Issuers

Issuer (CA) Certs
Let's Encrypt 5,242
DigiCert 1,338
Sectigo 1,103
YR1 1,102
YR2 1,005
YE2 539
YE1 536
GEANT TLS RSA 1 524
Amazon 465
GlobalSign 356
GoDaddy 250
GoDaddy (Starfield) 123
GEANT TLS ECC 1 101
ZeroSSL 95
Certum 77

Top Hosting ASNs

No hosting attribution yet

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

Tech-Stack Distribution

No Wappalyzer detections

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

Threat-intel hits

Feed Category Domains
openphish phishing 31
ℹ Coverage will improve significantly once CZDS zone-file access is granted for this TLD.