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.

9 hosts · 267 ms

HostCertsFirst seenLast seenDNS
shikokubank.co.jp 11 2025-07-23 2026-10-06 nodata
www2.shikokubank.co.jp 1 2025-10-21 2025-10-21 ok
miiya.shikokubank.co.jp 5 2026-05-20 2026-09-17 ok
webkoufuri.shikokubank.co.jp 2 2025-12-15 2025-12-15 nodata
cms.shikokubank.co.jp 2 2025-07-23 2026-07-17 nodata
www.cms.shikokubank.co.jp 2 2025-07-23 2026-07-17 nodata
sms.shikokubank.co.jp 1 2026-05-25 2026-05-25 ok
ns.shikokubank.co.jp 2 2025-07-23 2026-07-29 ok
www.shikokubank.co.jp 11 2025-07-23 2026-10-06 ok

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