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.

18 hosts · 329 ms

HostCertsFirst seenLast seenDNS
southlandcu.org 13 2026-04-21 2026-08-17 ok
*.southlandcu.org 1 2026-05-29 2026-05-29 —
staging.southlandcu.org 10 2026-05-08 2026-09-03 ok
mgr-staging.southlandcu.org 14 2026-05-06 2026-09-01 ok
msg.southlandcu.org 1 2025-11-20 2025-11-20 ok
branch-portal.southlandcu.org 7 2026-05-26 2026-09-21 ok
my-admin.southlandcu.org 10 2026-04-15 2026-08-12 ok
scuadmin.southlandcu.org 12 2026-04-28 2026-08-24 ok
join.southlandcu.org 2 2026-02-21 2026-07-09 ok
my-ip.southlandcu.org 10 2026-04-15 2026-08-12 ok
transfer.southlandcu.org 4 2026-05-14 2026-07-28 ok
mgr.southlandcu.org 6 2026-05-07 2026-09-02 ok
estatements.southlandcu.org 2 2026-02-17 2026-02-17 ok
www.estatements.southlandcu.org 2 2026-02-17 2026-02-17 nxdomain
www.southlandcu.org 6 2026-04-20 2026-08-16 ok
apply.southlandcu.org 10 2026-05-03 2026-08-30 ok
my.southlandcu.org 10 2026-04-15 2026-08-12 ok
enjoy.southlandcu.org 5 2026-05-18 2026-09-15 ok

Programmatic access, with DNS A records: API GET /v1/hosts/southlandcu.org (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/southlandcu.org.