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.

32 hosts · 266 ms

HostCertsFirst seenLast seenDNS
sonybank.jp 4 2026-03-30 2026-09-25 ok
ajst1.sonybank.jp 1 2026-09-02 2026-09-02 ok
cloud.ma.sonybank.jp 1 2026-09-30 2026-09-30 ok
image.ma.sonybank.jp 2 2026-01-08 2026-02-20 ok
click.ma.sonybank.jp 1 2026-02-24 2026-02-24 ok
cloud.test.ma.sonybank.jp 1 2026-09-30 2026-09-30 ok
image.test.ma.sonybank.jp 2 2026-01-22 2026-02-20 ok
click.test.ma.sonybank.jp 1 2026-02-15 2026-02-15 ok
view.test.ma.sonybank.jp 1 2026-02-15 2026-02-15 ok
view.ma.sonybank.jp 1 2026-02-24 2026-02-24 ok
fxa.sonybank.jp 1 2026-05-27 2026-05-27 ok
ac.sonybank.jp 1 2026-05-27 2026-05-27 ok
dc.sonybank.jp 3 2025-08-07 2026-07-24 ok
dd.sonybank.jp 1 2026-05-27 2026-05-27 ok
survey.cdd.sonybank.jp 2 2026-01-20 2026-01-20 ok
stg-survey.cdd.sonybank.jp 1 2026-04-06 2026-04-06 ok
blog.sonybank.jp 1 2026-06-08 2026-06-08 ok
research.sonybank.jp 2 2025-08-27 2026-09-10 ok
fxauth.sonybank.jp 1 2026-09-10 2026-09-10 ok
api.sonybank.jp 4 2026-03-30 2026-09-25 ok
lp.sonybank.jp 2 2025-08-27 2026-09-10 ok
corp.sonybank.jp 4 2026-03-30 2026-09-25 ok
sp.sonybank.jp 4 2026-03-30 2026-09-25 ok
fxsp.sonybank.jp 1 2026-05-27 2026-05-27 ok
fxp.sonybank.jp 1 2026-05-27 2026-05-27 ok
static.connect.sonybank.jp 3 2026-02-25 2026-08-26 ok
api.connect.sonybank.jp 2 2026-02-25 2026-08-26 ok
portal.connect.sonybank.jp 2 2026-02-25 2026-08-26 ok
st.sonybank.jp 3 2025-07-23 2026-07-24 ok
igw.sonybank.jp 4 2026-03-30 2026-09-25 ok
fxrw.sonybank.jp 1 2026-05-27 2026-05-27 ok
www.sonybank.jp 4 2026-03-30 2026-09-25 ok

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