Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

66 hosts · 382 ms

HostCertsFirst seenLast seenDNS
toto02.mobile-netbk.jp 2 2026-01-28 2026-01-28 ok
csp02.mobile-netbk.jp 5 2026-01-28 2026-08-21 ok
ua-hls02.mobile-netbk.jp 3 2025-07-17 2026-07-17 ok
ed-hls02.mobile-netbk.jp 3 2025-07-17 2026-07-17 ok
it-hls02.mobile-netbk.jp 3 2025-07-17 2026-07-17 ok
st-hls02.mobile-netbk.jp 3 2025-07-17 2026-07-17 ok
debit02.mobile-netbk.jp 3 2025-09-13 2026-09-18 ok
toto12.mobile-netbk.jp 2 2026-01-28 2026-01-28 ok
csp12.mobile-netbk.jp 2 2026-01-28 2026-01-28 ok
debit12.mobile-netbk.jp 3 2025-09-13 2026-09-18 ok
toto22.mobile-netbk.jp 2 2026-01-28 2026-01-28 ok
csp22.mobile-netbk.jp 225 2025-12-11 2025-12-15 ok
toto32.mobile-netbk.jp 2 2025-08-18 2026-08-28 ok
csp32.mobile-netbk.jp 2 2025-08-18 2026-08-28 ok
debit32.mobile-netbk.jp 2 2025-09-13 2026-09-18 ok
toto42.mobile-netbk.jp 2 2025-08-18 2026-08-28 ok
csp42.mobile-netbk.jp 221 2025-12-11 2025-12-15 ok
auw2esb2bbs.it2.mobile-netbk.jp 1 2025-10-20 2025-10-20 ok
bk04.mobile-netbk.jp 6 2026-03-02 2026-08-28 ok
fx04.mobile-netbk.jp 2 2026-05-21 2026-05-21 ok
cloud.f4.mobile-netbk.jp 2 2025-07-27 2026-07-14 ok
image.f4.mobile-netbk.jp 5 2025-08-02 2026-09-09 ok
click.f4.mobile-netbk.jp 2 2025-07-27 2026-07-14 ok
view.f4.mobile-netbk.jp 2 2025-07-27 2026-07-15 ok
fx06.mobile-netbk.jp 2 2025-08-26 2026-07-26 ok
it1bk07.mobile-netbk.jp 2 2026-02-06 2026-02-06 ok
it2bk07.mobile-netbk.jp 2 2026-02-06 2026-02-06 ok
stgbk07.mobile-netbk.jp 6 2025-07-17 2026-08-21 ok
it1-ib.mobile-netbk.jp 1 2025-11-14 2025-11-14 ok
it2-ib.mobile-netbk.jp 1 2025-11-14 2025-11-14 ok
it3-ib.mobile-netbk.jp 1 2025-11-14 2025-11-14 ok
stg-ib.mobile-netbk.jp 4 2025-11-14 2026-08-21 ok
it1-sib.mobile-netbk.jp 1 2025-11-14 2025-11-14 ok
it2-sib.mobile-netbk.jp 1 2025-11-14 2025-11-14 ok
it3-sib.mobile-netbk.jp 1 2025-11-14 2025-11-14 ok
stg-sib.mobile-netbk.jp 4 2025-11-14 2026-08-21 ok
pd.mobile-netbk.jp 2 2026-01-28 2026-01-28 ok
tpd.mobile-netbk.jp 2 2026-01-28 2026-01-28 ok
unite.mobile-netbk.jp 5 2026-03-17 2026-09-18 ok
stgbk07org.mobile-netbk.jp 3 2025-07-17 2026-07-17 ok
*.agilestg.mobile-netbk.jp 5 2025-09-17 2026-09-25 —
ccob.agilestg.mobile-netbk.jp 3 2025-10-13 2026-09-13 ok
auto-portal.agilestg.mobile-netbk.jp 2 2025-08-04 2026-07-05 ok
cportal.agilestg.mobile-netbk.jp 2 2026-03-23 2026-09-10 ok
corp.agilestg.mobile-netbk.jp 3 2026-03-02 2026-08-21 ok
auth.mobile-netbk.jp 2 2026-02-04 2026-02-04 ok
api.mobile-netbk.jp 1 2026-02-04 2026-02-04 ok
stg-cln.mobile-netbk.jp 2 2026-06-22 2026-06-22 nxdomain
tr-cln.mobile-netbk.jp 2 2026-06-22 2026-06-22 nxdomain
uat-cln.mobile-netbk.jp 2 2026-06-22 2026-06-22 nxdomain
it-cln.mobile-netbk.jp 2 2026-06-22 2026-06-22 nxdomain
alb04.allocation.mobile-netbk.jp 1 2025-10-27 2025-10-27 nxdomain
vvv.allocation.mobile-netbk.jp 1 2025-10-27 2025-10-27 ok
spw.allocation.mobile-netbk.jp 1 2025-10-27 2025-10-27 ok
pre-spw.allocation.mobile-netbk.jp 1 2025-11-05 2025-11-05 ok
www.allocation.mobile-netbk.jp 1 2025-11-05 2025-11-05 ok
fx-demo.mobile-netbk.jp 2 2025-06-25 2026-05-25 ok
*.fx-demo.mobile-netbk.jp 2 2025-06-25 2026-05-25 —
api.fx-demo.mobile-netbk.jp 2 2025-06-29 2026-05-28 ok
*.api.fx-demo.mobile-netbk.jp 2 2025-06-29 2026-05-28 —
at.mobile-netbk.jp 3 2025-11-18 2026-08-19 ok
*.agiledev.mobile-netbk.jp 3 2025-09-18 2026-08-19 —
vvv.mobile-netbk.jp 6 2026-02-27 2026-08-28 ok
spw.mobile-netbk.jp 10 2026-02-27 2026-08-28 ok
pre-spw.mobile-netbk.jp 13 2026-02-27 2026-08-28 ok
www.mobile-netbk.jp 7 2026-02-27 2026-08-28 ok

Programmatic access, with DNS A records: API GET /v1/hosts/mobile-netbk.jp (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/mobile-netbk.jp.