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.

18 hosts · 245 ms

HostCertsFirst seenLast seen
habitium.com 23 2026-04-29 2026-09-25
*.habitium.com 14 2026-04-29 2026-09-04
aide.habitium.com 5 2026-05-06 2026-09-02
hilfe.habitium.com 5 2026-05-02 2026-08-29
soporte.habitium.com 5 2026-05-06 2026-09-02
suporte.habitium.com 5 2026-05-02 2026-08-29
bimi.habitium.com 6 2026-05-30 2026-09-25
carrier-portal.habitium.com 1 2026-01-23 2026-01-23
*.carrier-portal.habitium.com 1 2026-01-23 2026-01-23
m.habitium.com 5 2026-05-11 2026-09-06
cn.habitium.com 5 2026-06-04 2026-10-02
cdn.cn.habitium.com 4 2026-02-28 2026-09-14
cdn.habitium.com 11 2026-04-20 2026-10-02
supporto.habitium.com 6 2026-05-06 2026-09-02
partners.habitium.com 3 2026-09-09 2026-09-09
*.partners.habitium.com 3 2026-09-09 2026-09-09
mkt.habitium.com 1 2026-10-07 2026-10-07
support.habitium.com 5 2026-05-02 2026-08-30

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