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.

7 hosts · 208 ms

HostCertsFirst seenLast seenDNS
direct-teleshop.jp 2 2025-07-15 2026-08-06 ok
adebis1.direct-teleshop.jp 2 2025-10-31 2026-09-30 ok
cp2.direct-teleshop.jp 2 2025-07-18 2026-08-06 ok
backoffice.direct-teleshop.jp 2 2025-07-01 2026-07-16 ok
img.direct-teleshop.jp 1 2025-10-21 2025-10-21 nxdomain
ml.direct-teleshop.jp 4 2026-02-14 2026-09-29 ok
a8cv.direct-teleshop.jp 7 2026-05-18 2026-09-14 ok

Programmatic access, with DNS A records: API GET /v1/hosts/direct-teleshop.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/direct-teleshop.jp.