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.

22 hosts · 310 ms

HostCertsFirst seenLast seenDNS
psychobunny.com 17 2026-04-19 2026-09-23 ok
*.psychobunny.com 16 2025-08-25 2026-08-27 —
1800.psychobunny.com 10 2026-04-09 2026-08-05 ok
ukg-wh-prod.psychobunny.com 2 2026-08-10 2026-08-10 ok
etllite.psychobunny.com 1 2026-06-02 2026-06-02 ok
unifi.psychobunny.com 4 2026-04-19 2026-08-17 ok
trk.psychobunny.com 11 2026-05-22 2026-09-17 ok
help.psychobunny.com 10 2026-04-16 2026-08-12 ok
refer.psychobunny.com 2 2026-02-04 2026-02-04 ok
qr.psychobunny.com 5 2026-04-25 2026-08-23 ok
carrieres.psychobunny.com 2 2026-04-15 2026-09-15 ok
sms.psychobunny.com 6 2026-05-10 2026-09-05 ok
jenkins.psychobunny.com 1 2026-03-17 2026-03-17 nxdomain
www.jenkins.psychobunny.com 1 2026-03-17 2026-03-17 nxdomain
empleos.psychobunny.com 2 2026-04-15 2026-09-15 nxdomain
sweeps.psychobunny.com 2 2025-06-26 2026-08-07 ok
careers.psychobunny.com 2 2026-04-15 2026-09-15 ok
payment.psychobunny.com 5 2026-04-22 2026-08-20 ok
account.psychobunny.com 13 2026-04-10 2026-09-21 ok
etllite-test.psychobunny.com 5 2026-04-16 2026-09-16 ok
etllite-dev.psychobunny.com 1 2025-12-09 2025-12-09 ok
www.psychobunny.com 5 2026-05-30 2026-09-26 ok

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