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.

13 hosts · 425 ms

HostCertsFirst seenLast seenDNS
kiraboshibank.co.jp 2 2026-04-13 2026-04-28 ok
*.kiraboshibank.co.jp 1 2026-06-22 2026-06-22 —
www.hd.kiraboshibank.co.jp 3 2025-09-01 2026-07-23 ok
stg.kiraboshibank.co.jp 2 2025-07-11 2026-07-08 ok
www.stg.kiraboshibank.co.jp 2 2025-07-11 2026-07-08 nxdomain
ml.kiraboshibank.co.jp 1 2025-11-28 2025-11-28 ok
kojinloan.kiraboshibank.co.jp 1 2026-01-05 2026-01-05 ok
stgkojinloan.kiraboshibank.co.jp 1 2026-01-05 2026-01-05 ok
app.kiraboshibank.co.jp 3 2025-07-28 2026-09-03 ok
www.cc0137.biz-net.kiraboshibank.co.jp 5 2026-04-03 2026-07-21 ok
www.biz-net.kiraboshibank.co.jp 5 2026-04-03 2026-07-29 ok
recruit.kiraboshibank.co.jp 3 2026-03-19 2026-09-17 ok
www.kiraboshibank.co.jp 2 2026-04-13 2026-04-28 ok

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