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.

10 hosts · 302 ms

HostCertsFirst seenLast seenDNS
nexentbank.de 9 2026-06-01 2026-09-27 ok
webstage.nexentbank.de 10 2026-05-12 2026-09-08 ok
banking.nexentbank.de 8 2026-03-18 2026-10-01 ok
autodiscover.nexentbank.de 3 2026-03-31 2026-10-05 ok
news.nexentbank.de 3 2026-06-08 2026-08-16 ok
digitaltest.nexentbank.de 2 2026-03-27 2026-10-01 nxdomain
webdev.nexentbank.de 8 2026-05-12 2026-09-07 ok
digitaldev.nexentbank.de 2 2026-03-27 2026-10-01 nxdomain
digitalplv.nexentbank.de 2 2026-03-27 2026-10-01 nxdomain
www.nexentbank.de 12 2026-04-21 2026-09-28 ok

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