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.

9 hosts · 228 ms

HostCertsFirst seenLast seen
lunymerch.de 14 2026-05-31 2026-10-11
api.lunymerch.de 4 2026-06-15 2026-10-12
partner.lunymerch.de 17 2026-04-29 2026-09-08
tools.lunymerch.de 1 2026-08-18 2026-08-18
os.lunymerch.de 1 2026-10-11 2026-10-11
chat.lunymerch.de 5 2026-05-15 2026-09-12
cockpit.lunymerch.de 4 2026-06-15 2026-10-12
account.lunymerch.de 13 2026-04-17 2026-09-27
www.lunymerch.de 15 2026-05-31 2026-10-10

Programmatic access: API GET /v1/hosts/lunymerch.de (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/lunymerch.de.