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.

31 hosts · 417 ms

HostCertsFirst seenLast seenDNS
swb-gruppe.de 6 2025-07-23 2026-09-24 ok
*.swb-gruppe.de 4 2025-07-23 2026-09-24 —
devccgtlacs220.swb-gruppe.de 2 2025-10-24 2025-10-27 ok
cloud.swb-gruppe.de 4 2026-04-17 2026-08-17 ok
infoservice.swb-gruppe.de 5 2026-05-13 2026-09-10 ok
login-tk.swb-gruppe.de 4 2026-04-17 2026-08-17 ok
e.tk.swb-gruppe.de 3 2026-05-20 2026-08-04 ok
autodiscover.tk.swb-gruppe.de 2 2025-07-23 2026-07-21 ok
webmail.swb-gruppe.de 4 2026-04-17 2026-08-17 ok
securemail.swb-gruppe.de 1 2026-01-12 2026-01-12 ok
csm.swb-gruppe.de 4 2026-04-17 2026-08-17 ok
scepman.swb-gruppe.de 2 2026-02-21 2026-06-14 ok
mobildaten.swb-gruppe.de 4 2026-04-20 2026-08-18 ok
mein.swb-gruppe.de 3 2026-04-17 2026-09-17 ok
devccgtlacs220.sip.swb-gruppe.de 2 2025-10-24 2025-10-27 ok
vpp.swb-gruppe.de 12 2026-05-10 2026-09-28 ok
onlinemanager.swb-gruppe.de 1 2026-01-20 2026-01-20 nxdomain
www.onlinemanager.swb-gruppe.de 1 2026-01-20 2026-01-20 nxdomain
mediencenter.swb-gruppe.de 4 2026-04-17 2026-08-17 ok
hostmaster.swb-gruppe.de 4 2026-06-05 2026-10-05 ok
*.apps.swb-gruppe.de 2 2025-10-02 2026-09-29 —
tps2outlook.apps.swb-gruppe.de 2 2026-02-26 2026-06-18 ok
officevorlagen.apps.swb-gruppe.de 2 2026-02-26 2026-06-18 ok
tps2outlook-uat.apps.swb-gruppe.de 2 2026-02-24 2026-06-16 ok
officevorlagen-uat.apps.swb-gruppe.de 2 2026-02-24 2026-06-16 ok
tps2outlook-test.apps.swb-gruppe.de 2 2026-02-22 2026-06-14 ok
officevorlagen-test.apps.swb-gruppe.de 2 2026-02-24 2026-06-16 ok
css.swb-gruppe.de 2 2025-07-11 2026-07-20 ok
webdav.swb-gruppe.de 4 2026-04-17 2026-08-17 ok
www.swb-gruppe.de 2 2025-11-14 2025-11-14 ok
devccgtlacs220.3party.swb-gruppe.de 2 2025-10-24 2025-10-27 ok

Programmatic access, with DNS A records: API GET /v1/hosts/swb-gruppe.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/swb-gruppe.de.