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.

22 hosts · 292 ms

HostCertsFirst seenLast seenDNS
ad-magazin.de 6 2025-10-05 2026-09-07 ok
*.ad-magazin.de 8 2025-10-05 2026-09-07 —
c2.ad-magazin.de 5 2025-12-29 2025-12-29 ok
data-cba0c1fee3.ad-magazin.de 3 2026-05-22 2026-09-07 ok
c.ad-magazin.de 5 2025-12-29 2025-12-29 ok
qc.ad-magazin.de 10 2025-09-23 2026-08-24 ok
ssc.ad-magazin.de 2 2026-02-24 2026-07-12 ok
*.choice.ad-magazin.de 1 2025-11-19 2025-11-19 —
dev.choice.ad-magazin.de 1 2026-05-07 2026-05-07 nxdomain
*.dev.choice.ad-magazin.de 1 2026-05-07 2026-05-07 —
interactive.ad-magazin.de 1 2026-06-30 2026-06-30 ok
permutive.ad-magazin.de 4 2026-04-20 2026-08-19 ok
stag.ad-magazin.de 2 2026-03-25 2026-08-25 ok
interactive-stag.ad-magazin.de 3 2026-06-16 2026-06-18 ok
link.ad-magazin.de 4 2026-04-12 2026-08-10 ok
assets.ad-magazin.de 5 2025-07-30 2026-08-26 ok
stag-assets.ad-magazin.de 5 2025-07-30 2026-08-26 ok
events.ad-magazin.de 4 2026-04-17 2026-08-15 ok
custompages.dev.ad-magazin.de 1 2026-05-07 2026-05-07 nxdomain
*.custompages.dev.ad-magazin.de 1 2026-05-07 2026-05-07 —
competitions.dev.ad-magazin.de 1 2026-01-21 2026-01-21 nxdomain
*.competitions.dev.ad-magazin.de 1 2026-01-21 2026-01-21 —

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