Check-Host.cc

Top-Level Domain

.app

Aggregated statistics for the top-level domain

Apex domains
we've enumerated
Subdomains seen
CT + DNS + brute
TLS certs
24,000
naming .app
Hosting ASNs
distinct origins

Domain Distribution

No apex enumerations

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

Top Certificate Issuers

Issuer (CA) Certs
Let's Encrypt 9,440
Amazon 6,390
WR3 1,686
YE1 838
YE2 771
Cloudflare 748
Sectigo 706
YR1 670
YR2 653
ZeroSSL 604
GoDaddy 450
DigiCert 256
GlobalSign 143
Certum 30
LiteSSL 29

Top Hosting ASNs

No hosting attribution yet

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

Tech-Stack Distribution

No Wappalyzer detections

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

Threat-intel hits

Feed Category Domains
openphish phishing 1,619
ℹ Coverage will improve significantly once CZDS zone-file access is granted for this TLD.