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.

7 hosts · 221 ms

HostCertsFirst seenLast seenDNS
sbausparkasse.at 3 2025-10-16 2026-09-29 ok
grusskarten.sbausparkasse.at 2 2026-04-15 2026-10-01 ok
services.sbausparkasse.at 1 2025-11-18 2025-11-18 ok
uat.sbausparkasse.at 3 2026-03-12 2026-08-28 ok
consent.sbausparkasse.at 7 2026-05-22 2026-09-19 ok
servicesu.sbausparkasse.at 1 2025-11-18 2025-11-18 ok
www.sbausparkasse.at 3 2025-10-16 2026-09-29 ok

Programmatic access, with DNS A records: API GET /v1/hosts/sbausparkasse.at (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/sbausparkasse.at.