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.

8 hosts · 240 ms

HostCertsFirst seenLast seen
makusi.eus 7 2025-12-22 2026-09-11
*.makusi.eus 1 2025-12-22 2025-12-22
data.makusi.eus 2 2026-04-25 2026-04-25
pre.makusi.eus 3 2026-05-19 2026-09-03
login.pre.makusi.eus 10 2025-08-19 2026-09-10
track.makusi.eus 1 2025-12-24 2025-12-24
login.makusi.eus 6 2025-08-12 2026-09-16
www.makusi.eus 6 2026-05-19 2026-09-11

Programmatic access: API GET /v1/hosts/makusi.eus (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/makusi.eus.