Check-Host.cc

Top-Level Domain

.jp

Aggregated statistics for the top-level domain

Apex domains
570,396
we've enumerated
Subdomains seen
2,309,580
CT + DNS + brute
TLS certs
75,381
naming .jp
Hosting ASNs
15
distinct origins

Domain Distribution

Apex domains with the most known subdomains — large orgs, telecoms, hosters.
Apex Subdomains
xsrv.jp 36,272
mixh.jp 35,727
cfbx.jp 31,575
coreserver.jp 5,400
stars.ne.jp 4,291
docomo.ne.jp 3,465
vs.sakura.ne.jp 3,357
tsukuba.ac.jp 2,793
xbiz.jp 2,614
recruit.co.jp 2,514
rakuten.co.jp 2,466
cloudfree.jp 2,387
mufg.jp 2,379
mixcd24.jp 2,360
megax.ne.jp 2,344
nii.ac.jp 2,166
softbank.jp 2,007
yahoo.co.jp 1,974
biglobe.ne.jp 1,905
stylful.jp 1,785
wpx.jp 1,727
geo.jp 1,701
bex.jp 1,648
jetboy.jp 1,640
suumo.jp 1,626
so-net.ne.jp 1,611
u-tokyo.ac.jp 1,592
jpsovereigncloud.jp 1,547
htmnet.ne.jp 1,532
twin.ne.jp 1,430
tokyo.lg.jp 1,401
commynavi-job20s.jp 1,397
pt7.jp 1,367
etius.jp 1,335
nagoya-u.ac.jp 1,330
1gr.jp 1,255
hobby-net.ne.jp 1,230
xrea.jp 1,208
estama.jp 1,197
brazil.ne.jp 1,188
210.ne.jp 1,186
emb-japan.go.jp 1,182
cuenote.jp 1,175
kyoto-u.ac.jp 1,162
seiryu.ne.jp 1,124
mynavi.jp 1,070
xdsl.ne.jp 1,067
hoops.jp 1,064
blogmin.jp 1,060
online.jp 1,059

Top Certificate Issuers

Issuer (CA) Certs
Amazon 18,979
Let's Encrypt 10,353
DigiCert 8,129
GlobalSign 7,910
JPRS Domain Validation Authority - G4 5,347
Cybertrust Japan SureServer CA G4 2,680
WR3 1,919
Sectigo 1,282
YR2 1,212
NII Open Domain CA - G8 RSA 1,161
Cybertrust Japan SureServer EV CA G3 1,144
YR1 1,125
SECOM Passport for Web SR 3.0 CA 955
FujiSSL RSA Domain Validation Secure Server CA 2 862
NII Open Domain CA - G7 RSA 758

Top Hosting ASNs

ASN Name .jp domains
AS131965 XSERVER 121,877
AS206834 108,691
AS16509 Amazon.com 89,501
AS7506 GMO Internet, Inc. 59,861
AS9371 SAKURA internet AS9371 48,509
AS13335 Cloudflare 34,452
AS7684 SAKURA-A 30,621
AS9370 SAKURA internet AS9370 24,682
AS37907 19,351
AS58791 GMO Internet West 18,575
AS396982 Google Cloud 18,281
AS4713 NTT Communications Corporation (OCN) 15,934
AS4694 IDC Frontier Inc. 14,958
AS9597 KDDI Web Communications 9,419
AS131921 GMO CLOUD 8,939

Tech-Stack Distribution

No Wappalyzer detections

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

Threat-intel hits

Feed Category Domains
openphish phishing 7
ℹ Coverage will improve significantly once CZDS zone-file access is granted for this TLD.