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.

35 hosts · 539 ms

HostCertsFirst seenLast seenDNS
strauss.de 6 2025-07-24 2026-08-23 ok
*.strauss.de 2 2025-07-24 2026-07-27 —
rac04.strauss.de 2 2025-06-20 2026-06-18 ok
supplier-qa.strauss.de 5 2026-05-28 2026-09-25 ok
www-qa.strauss.de 5 2026-05-05 2026-09-02 ok
supplier-sta.strauss.de 5 2026-05-28 2026-09-25 ok
lobster-sta.strauss.de 2 2025-06-26 2026-06-15 ok
www-sta.strauss.de 5 2026-05-05 2026-09-02 ok
sbcbie.strauss.de 2 2026-06-11 2026-06-26 ok
presse.strauss.de 14 2026-05-22 2026-10-02 ok
drive.strauss.de 5 2026-05-10 2026-09-07 ok
help-testing.strauss.de 7 2026-04-22 2026-09-27 ok
pam.strauss.de 1 2026-06-11 2026-06-11 ok
gutschein.strauss.de 13 2026-05-01 2026-10-01 ok
mail.gutschein.strauss.de 1 2026-09-14 2026-09-14 ok
www.gutschein.strauss.de 13 2026-05-01 2026-10-01 ok
bon.strauss.de 5 2026-04-26 2026-08-24 ok
help.strauss.de 7 2026-04-22 2026-09-27 ok
ftp.strauss.de 6 2025-08-18 2026-09-16 ok
voucher.strauss.de 5 2026-04-26 2026-08-24 ok
supplier.strauss.de 4 2026-06-06 2026-10-04 ok
trainingcenter.strauss.de 10 2026-04-25 2026-08-23 ok
lobster.strauss.de 2 2025-06-26 2026-06-15 ok
campustour.strauss.de 5 2026-04-26 2026-08-24 ok
ballkids.strauss.de 5 2026-04-26 2026-08-24 ok
ots.strauss.de 5 2026-04-28 2026-08-25 ok
gpt.strauss.de 2 2026-02-20 2026-07-10 ok
stage-gpt.strauss.de 2 2026-02-16 2026-07-09 ok
dev-gpt.strauss.de 2 2026-02-18 2026-07-10 ok
ots-test.strauss.de 5 2026-04-26 2026-08-24 ok
sbcslu.strauss.de 2 2026-06-11 2026-06-26 ok
supplier-dev.strauss.de 5 2026-05-28 2026-09-25 ok
www-dev.strauss.de 5 2026-05-05 2026-09-02 ok
www.strauss.de 4 2026-04-21 2026-08-23 ok
feedback.survey.strauss.de 5 2026-06-01 2026-09-29 ok

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