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.

12 hosts · 257 ms

Download CSV
HostCertsFirst seenLast seen
smacc.com 9 2026-02-16 2026-10-17
*.smacc.com 1 2026-02-16 2026-02-16
smacc6.smacc.com 5 2026-05-19 2026-09-16
smacc7.smacc.com 5 2026-05-19 2026-09-16
manage.smacc.com 2 2026-01-25 2026-06-22
kathiri.smacc.com 4 2025-10-13 2026-08-24
docs.smacc.com 7 2026-03-01 2026-10-07
www.docs.smacc.com 1 2026-03-01 2026-03-01
t.smacc.com 4 2026-06-15 2026-10-13
www.smacc.com 8 2026-05-02 2026-10-17
academy.smacc.com 6 2025-07-20 2026-09-05
www.academy.smacc.com 6 2025-07-20 2026-09-05

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