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.

9 hosts · 305 ms

HostCertsFirst seenLast seen
shopvitality.com 21 2026-05-26 2026-10-04
*.shopvitality.com 3 2026-10-02 2026-10-02
dashboard.shopvitality.com 1 2025-12-19 2025-12-19
i.shopvitality.com 6 2026-04-12 2026-09-08
link.shopvitality.com 1 2025-12-19 2025-12-19
trk.shopvitality.com 2 2026-09-24 2026-09-24
help.shopvitality.com 10 2026-05-02 2026-08-28
returns.shopvitality.com 8 2026-05-16 2026-09-11
www.shopvitality.com 17 2026-04-11 2026-10-02

Programmatic access: API GET /v1/hosts/shopvitality.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/shopvitality.com.