Find every subdomain
of a domain.

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

15 hosts · 191 ms

HostCertsFirst seenLast seen
lexus-fs.jp 4 2025-10-06 2026-10-09
*.lexus-fs.jp 1 2026-05-26 2026-05-26
st2.lexus-fs.jp 2 2026-02-19 2026-02-19
st3.lexus-fs.jp 2 2026-02-19 2026-02-19
credit.lexus-fs.jp 2 2026-02-20 2026-02-20
st-credit.lexus-fs.jp 2 2026-02-20 2026-02-20
st.lexus-fs.jp 3 2025-09-29 2026-10-06
preview.lexus-fs.jp 2 2025-10-06 2026-10-09
st2-preview.lexus-fs.jp 2 2026-02-19 2026-02-19
st3-preview.lexus-fs.jp 2 2026-02-19 2026-02-19
st-preview.lexus-fs.jp 3 2025-09-29 2026-10-06
my.lexus-fs.jp 3 2026-02-19 2026-02-20
itb1.my.lexus-fs.jp 2 2026-02-19 2026-02-19
itb2.my.lexus-fs.jp 2 2026-02-19 2026-02-19
kakunin.my.lexus-fs.jp 3 2026-02-19 2026-02-20

Programmatic access: API GET /v1/hosts/lexus-fs.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/lexus-fs.jp.