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.

19 hosts · 316 ms

HostCertsFirst seenLast seenDNS
hk.sc.com 2 2025-09-10 2026-08-07 ok
m2.hk.sc.com 2 2025-09-10 2026-08-07 ok
res2.hk.sc.com 2 2025-09-10 2026-08-07 ok
t2.hk.sc.com 2 2025-09-10 2026-08-07 ok
lending.hk.sc.com 15 2026-07-30 2026-10-05 nxdomain
test-lending.hk.sc.com 17 2026-05-19 2026-10-07 ok
test-wealthlending.hk.sc.com 3 2026-06-04 2026-07-09 nxdomain
test-netbanking.hk.sc.com 2 2025-12-27 2025-12-27 nxdomain
m.hk.sc.com 2 2025-09-10 2026-08-07 ok
mobileapp.hk.sc.com 23 2026-06-04 2026-10-01 ok
res.hk.sc.com 2 2025-09-10 2026-08-07 ok
s2bxmetals.hk.sc.com 2 2025-08-06 2026-07-10 ok
test-mobile-gwls.hk.sc.com 3 2026-06-04 2026-07-09 nxdomain
test-deposits.hk.sc.com 18 2026-06-03 2026-10-04 nxdomain
t.hk.sc.com 2 2025-09-10 2026-08-07 ok
connect-rt.hk.sc.com 1 2025-10-10 2025-10-10 ok
livesupport-rt.hk.sc.com 2 2025-10-10 2026-10-01 ok
test-livesupport-rt.hk.sc.com 2 2025-10-10 2026-10-07 ok
sandbox-livesupport-rt.hk.sc.com 2 2025-10-10 2026-10-07 ok

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