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.

11 hosts · 340 ms

HostCertsFirst seenLast seenDNS
nexentbank.nl 10 2026-05-16 2026-09-11 ok
webstage.nexentbank.nl 8 2026-05-11 2026-09-06 ok
bankieren.nexentbank.nl 8 2026-03-18 2026-10-01 ok
autodiscover.nexentbank.nl 3 2026-03-31 2026-10-05 ok
hr.nexentbank.nl 6 2026-06-03 2026-09-30 ok
news.nexentbank.nl 3 2026-06-08 2026-08-16 ok
digitaltest.nexentbank.nl 2 2026-03-27 2026-10-01 nxdomain
webdev.nexentbank.nl 12 2026-05-12 2026-09-07 ok
digitaldev.nexentbank.nl 2 2026-03-27 2026-10-01 nxdomain
digitalplv.nexentbank.nl 2 2026-03-27 2026-10-01 nxdomain
www.nexentbank.nl 12 2026-04-21 2026-09-12 ok

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