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.

17 hosts · 314 ms

HostCertsFirst seenLast seenDNS
goettl.com 39 2025-10-20 2026-10-04 ok
*.goettl.com 23 2025-10-30 2026-10-04 —
signature.goettl.com 5 2026-05-06 2026-09-19 ok
link.goettl.com 5 2026-05-18 2026-09-13 ok
portal.goettl.com 5 2026-05-13 2026-09-08 ok
email.goettl.com 12 2026-05-21 2026-09-16 ok
vpn.goettl.com 2 2025-10-11 2026-10-02 ok
www.vpn.goettl.com 2 2025-10-11 2026-10-02 nxdomain
workshop.goettl.com 1 2026-06-19 2026-06-19 ok
signatures.goettl.com 3 2026-05-27 2026-09-19 ok
links.goettl.com 7 2026-05-06 2026-09-02 ok
intforms.goettl.com 13 2026-05-09 2026-09-07 ok
projects.goettl.com 12 2026-06-02 2026-09-30 ok
hubspot.goettl.com 12 2026-05-21 2026-09-17 ok
support.goettl.com 10 2026-05-17 2026-09-14 ok
assist.goettl.com 8 2026-06-07 2026-10-05 ok
www.goettl.com 8 2026-04-13 2026-08-09 ok

Programmatic access, with DNS A records: API GET /v1/hosts/goettl.com (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/goettl.com.