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.

15 hosts · 301 ms

HostCertsFirst seenLast seenDNS
weltsparen.de 5 2025-08-20 2026-05-22 ok
*.weltsparen.de 9 2025-10-25 2026-09-24 —
eu-afprod.weltsparen.de 3 2026-05-24 2026-09-11 ok
p.eu-afprod.weltsparen.de 7 2026-05-02 2026-09-17 ok
backoffice.weltsparen.de 1 2025-07-22 2025-07-22 ok
www.backoffice.weltsparen.de 1 2025-07-22 2025-07-22 nxdomain
tax-engine.weltsparen.de 1 2025-12-24 2025-12-24 nxdomain
banking.weltsparen.de 1 2025-08-24 2025-08-24 ok
registrierung.weltsparen.de 1 2025-08-01 2025-08-01 nodata
auth.weltsparen.de 4 2025-10-14 2026-09-14 ok
r.info.weltsparen.de 4 2026-04-09 2026-09-16 ok
r.promo.weltsparen.de 3 2026-06-25 2026-09-13 ok
cap.weltsparen.de 2 2025-06-22 2026-05-23 ok
sbs.weltsparen.de 1 2025-11-14 2025-11-14 ok
www.weltsparen.de 1 2025-08-20 2025-08-20 ok

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