Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

30 hosts · 382 ms

HostCertsFirst seenLast seenDNS
kliemt.de 2 2025-07-23 2026-06-22 ok
dev23.kliemt.de 4 2026-04-15 2026-09-14 ok
talents-dev23.kliemt.de 4 2026-04-18 2026-09-15 ok
t2b.kliemt.de 3 2026-04-04 2026-10-05 ok
www.t2b.kliemt.de 1 2026-04-08 2026-04-08 nxdomain
vcard.kliemt.de 13 2026-04-28 2026-09-25 ok
devpage.kliemt.de 2 2025-07-23 2026-06-22 ok
secure.kliemt.de 3 2025-12-29 2026-10-05 ok
whistleblowing.kliemt.de 1 2026-09-14 2026-09-14 ok
mail.kliemt.de 2 2025-12-29 2026-04-04 ok
securemail.kliemt.de 6 2025-07-09 2026-10-05 ok
jobapplication.kliemt.de 1 2026-02-05 2026-02-05 ok
techradar.kliemt.de 2 2026-04-23 2026-08-12 ok
ber.kliemt.de 2 2025-12-29 2026-04-04 ok
eas.kliemt.de 1 2026-04-03 2026-04-03 ok
mailings.kliemt.de 1 2026-09-30 2026-09-30 ok
tools.kliemt.de 1 2026-06-16 2026-06-16 ok
kts.kliemt.de 3 2026-07-13 2026-09-11 ok
talents.kliemt.de 1 2026-05-07 2026-05-07 ok
mta-sts.kliemt.de 2 2026-03-16 2026-07-21 ok
dus.kliemt.de 3 2025-12-29 2026-10-05 ok
sat.kliemt.de 3 2026-02-16 2026-10-05 ok
devkliemt.kliemt.de 1 2026-09-14 2026-09-14 ok
avm-msx-01.int.kliemt.de 2 2025-12-29 2026-04-04 nxdomain
support.kliemt.de 10 2026-04-13 2026-09-12 ok
talents-dev.kliemt.de 1 2026-01-17 2026-01-17 ok
intake.dev.kliemt.de 2 2026-03-20 2026-06-05 ok
www.kliemt.de 2 2025-07-23 2026-06-22 ok
mta-sts.fax.kliemt.de 3 2026-08-11 2026-08-12 ok
academy.kliemt.de 10 2026-04-24 2026-09-10 ok

Programmatic access, with DNS A records: API GET /v1/hosts/kliemt.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/kliemt.de.