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.

20 hosts · 422 ms

HostCertsFirst seenLast seen
loberon.de 27 2026-05-08 2026-09-29
*.loberon.de 27 2026-05-08 2026-09-29
product-service.loberon.de 5 2026-05-03 2026-08-31
monitoring.service.loberon.de 2 2026-06-11 2026-06-11
unzer-monitoring.service.loberon.de 2 2026-05-31 2026-05-31
docker.service.loberon.de 2 2026-06-11 2026-06-11
docs.service.loberon.de 3 2026-06-22 2026-09-07
git.service.loberon.de 2 2026-06-11 2026-06-11
packagist.service.loberon.de 2 2026-06-11 2026-06-11
presse.loberon.de 11 2026-06-09 2026-10-06
live.loberon.de 16 2026-05-09 2026-09-04
katalog.loberon.de 5 2026-04-30 2026-08-28
information.loberon.de 5 2026-05-12 2026-09-09
ems-vpn.loberon.de 6 2026-05-24 2026-09-21
newsletter.loberon.de 4 2026-06-11 2026-10-09
ahjucs.loberon.de 4 2026-05-21 2026-09-27
news-images.loberon.de 5 2026-05-01 2026-08-29
rast.loberon.de 2 2026-04-26 2026-10-13
www.rast.loberon.de 2 2026-04-26 2026-10-13
rhdi7u.loberon.de 5 2026-05-02 2026-08-30

Programmatic access: API GET /v1/hosts/loberon.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/loberon.de.