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.

6 hosts · 185 ms

HostCertsFirst seenLast seen
primeran.eus 1 2026-01-14 2026-01-14
*.primeran.eus 1 2026-01-14 2026-01-14
data.primeran.eus 2 2026-04-25 2026-04-25
track.primeran.eus 1 2025-12-24 2025-12-24
panel.primeran.eus 5 2026-06-01 2026-09-29
login.primeran.eus 6 2025-08-12 2026-09-16

Programmatic access: API GET /v1/hosts/primeran.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/primeran.eus.