Check-Host.cc

Top-Level Domain

.app

Aggregated statistics for the top-level domain

Apex domains
799,706
we've enumerated
Subdomains seen
1,828,883
CT + DNS + brute
TLS certs
23,936
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 9,433
Amazon 6,389
WR3 1,680
YE1 824
YE2 757
Cloudflare 747
Sectigo 702
YR1 666
YR2 648
ZeroSSL 602
GoDaddy 448
DigiCert 255
GlobalSign 142
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 1,601
ℹ Coverage will improve significantly once CZDS zone-file access is granted for this TLD.