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.

34 hosts · 350 ms

HostCertsFirst seenLast seenDNS
kagin.co.jp 5 2025-08-21 2026-09-07 nodata
*.kagin.co.jp 2 2026-03-11 2026-07-27 —
devycd01.kagin.co.jp 3 2025-12-01 2026-08-04 ok
kgconap01.kagin.co.jp 2 2025-08-16 2025-12-01 ok
kgtstap01.kagin.co.jp 4 2025-09-10 2026-09-17 ok
pro-kgsba-app01.kagin.co.jp 1 2025-12-17 2025-12-17 ok
dev-kgsba-app01.kagin.co.jp 2 2025-11-14 2025-12-17 ok
devycd02.kagin.co.jp 2 2026-04-20 2026-08-04 ok
ib.kagin.co.jp 1 2025-10-22 2025-10-22 ok
clientcert.ib.kagin.co.jp 1 2025-10-22 2025-10-22 ok
ekyc.kagin.co.jp 2 2025-08-08 2026-08-07 ok
souzokuuketuke.kagin.co.jp 1 2025-12-15 2025-12-15 ok
dev-souzokuuketuke.kagin.co.jp 1 2025-12-16 2025-12-16 ok
paydonstore.kagin.co.jp 1 2026-01-29 2026-01-29 ok
stg.kagin.co.jp 1 2026-02-16 2026-02-16 ok
sh.kagin.co.jp 1 2026-01-15 2026-01-15 ok
api.kagin.co.jp 1 2025-10-22 2025-10-22 ok
sk.kagin.co.jp 1 2026-01-15 2026-01-15 ok
loan.kagin.co.jp 2 2025-08-08 2026-08-07 ok
gloan.kagin.co.jp 2 2025-08-08 2026-08-07 ok
tgloan.kagin.co.jp 3 2025-08-08 2026-08-07 ok
tloan.kagin.co.jp 3 2025-08-08 2026-08-07 ok
norudon.kagin.co.jp 1 2025-12-01 2025-12-01 ok
dev-norudon.kagin.co.jp 2 2025-08-29 2026-09-29 ok
kgnorudon.kagin.co.jp 1 2025-12-01 2025-12-01 ok
dev-kgnorudon.kagin.co.jp 3 2025-08-14 2026-08-03 ok
bizpo.kagin.co.jp 1 2026-01-29 2026-01-29 ok
faq.kagin.co.jp 1 2026-05-20 2026-05-20 ok
www.faq.kagin.co.jp 1 2026-05-20 2026-05-20 nxdomain
dms.kagin.co.jp 1 2026-04-02 2026-04-02 nxdomain
varios.kagin.co.jp 1 2025-12-01 2025-12-01 ok
familychart.kagin.co.jp 2 2026-04-17 2026-09-17 ok
www.kagin.co.jp 5 2025-08-21 2026-09-07 ok
ally.kagin.co.jp 1 2025-12-01 2025-12-01 ok

Programmatic access, with DNS A records: API GET /v1/hosts/kagin.co.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/kagin.co.jp.