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.

21 hosts · 282 ms

HostCertsFirst seenLast seen
sgmc.org 13 2025-08-13 2026-09-07
*.sgmc.org 7 2025-08-13 2026-07-31
VM-Radius-01.sgmc.org 3 2025-08-13 2026-05-06
VM-MEDNET-02.sgmc.org 3 2025-08-13 2026-05-06
vm-apiapp-tst3.sgmc.org 3 2025-08-13 2026-05-06
owa.sgmc.org 3 2025-08-13 2026-05-06
vm-apihrp-db.sgmc.org 3 2025-08-13 2026-05-06
bcaweb.sgmc.org 5 2025-08-13 2026-07-31
health.sgmc.org 11 2026-05-29 2026-09-24
link.sgmc.org 4 2025-08-13 2026-05-06
ithelpdesk.sgmc.org 8 2026-06-15 2026-10-13
foundation.sgmc.org 8 2026-04-24 2026-08-20
sg-mail-cas.sgmc.org 3 2025-08-13 2026-05-06
peopleservices.sgmc.org 13 2026-06-04 2026-10-02
careers.sgmc.org 12 2026-05-12 2026-09-07
dss.sgmc.org 2 2025-07-20 2026-06-20
projects.sgmc.org 12 2026-04-27 2026-08-26
intranet.sgmc.org 4 2026-02-22 2026-10-07
mychart.sgmc.org 4 2025-08-13 2026-05-06
www.sgmc.org 5 2026-05-09 2026-09-07
autodiscovery.sgmc.org 3 2025-08-13 2026-05-06

Programmatic access: API GET /v1/hosts/sgmc.org (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/sgmc.org.