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.

10 hosts · 215 ms

HostCertsFirst seenLast seen
bankofsw.com 31 2026-04-16 2026-10-06
*.bankofsw.com 22 2026-04-26 2026-10-06
static.bankofsw.com 10 2026-04-19 2026-08-16
secure.bankofsw.com 2 2026-06-17 2026-06-17
www.secure.bankofsw.com 2 2026-06-17 2026-06-17
vv-p1.internal.bankofsw.com 3 2025-07-14 2026-07-14
www.vv-p1.internal.bankofsw.com 3 2025-07-14 2026-07-14
sharefile-content.bankofsw.com 2 2026-03-17 2026-08-31
www.sharefile-content.bankofsw.com 2 2026-03-17 2026-08-31
www.bankofsw.com 10 2026-04-18 2026-08-14

Programmatic access: API GET /v1/hosts/bankofsw.com (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/bankofsw.com.