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.

9 hosts · 283 ms

HostCertsFirst seenLast seenDNS
teamaet.com 5 2026-04-22 2026-08-20 ok
field.teamaet.com 3 2026-06-29 2026-08-23 ok
forge.teamaet.com 1 2026-06-14 2026-06-14 ok
scepman.teamaet.com 2 2026-05-19 2026-09-11 ok
vpn.teamaet.com 4 2025-08-15 2026-09-14 ok
www.vpn.teamaet.com 2 2025-08-15 2025-08-15 nxdomain
atlas.teamaet.com 5 2026-04-22 2026-08-20 ok
mta-sts.teamaet.com 5 2026-04-27 2026-08-25 ok
www.teamaet.com 5 2026-04-22 2026-08-20 ok

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