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.

30 hosts · 274 ms

HostCertsFirst seenLast seenDNS
metlife.co.kr 2 2026-01-16 2026-01-16 nodata
*.metlife.co.kr 2 2026-01-16 2026-01-16 —
mesia2.metlife.co.kr 1 2025-11-04 2025-11-04 ok
exapi2.metlife.co.kr 1 2025-10-27 2025-10-27 ok
metplan2.metlife.co.kr 1 2025-11-04 2025-11-04 ok
eqt2.metlife.co.kr 1 2025-11-04 2025-11-04 nxdomain
brand.metlife.co.kr 1 2025-11-04 2025-11-04 ok
cybermobile.metlife.co.kr 1 2025-11-04 2025-11-04 ok
online.metlife.co.kr 1 2025-11-04 2025-11-04 ok
search.metlife.co.kr 1 2025-11-04 2025-11-04 ok
bioauth.metlife.co.kr 1 2025-11-04 2025-11-04 ok
link.metlife.co.kr 1 2025-11-04 2025-11-04 ok
mdm.metlife.co.kr 1 2026-04-06 2026-04-06 ok
tipcdn.metlife.co.kr 6 2026-05-14 2026-10-01 ok
meton.metlife.co.kr 1 2025-11-04 2025-11-04 ok
metdo.metlife.co.kr 1 2025-11-04 2025-11-04 ok
cyber.metlife.co.kr 1 2025-11-04 2025-11-04 ok
metaminer.metlife.co.kr 1 2026-03-31 2026-03-31 nxdomain
metplus.metlife.co.kr 1 2025-11-04 2025-11-04 ok
exapi2test.metlife.co.kr 1 2025-10-27 2025-10-27 ok
metatest.metlife.co.kr 1 2026-03-31 2026-03-31 nxdomain
webharddev.metlife.co.kr 1 2026-03-05 2026-03-05 nxdomain
mdmdev.metlife.co.kr 1 2026-04-06 2026-04-06 ok
clogindev.metlife.co.kr 1 2026-06-11 2026-06-11 ok
mapsdev.metlife.co.kr 3 2026-02-25 2026-08-28 ok
caccessdev.metlife.co.kr 1 2026-06-11 2026-06-11 ok
www.metlife.co.kr 8 2025-07-22 2026-09-08 ok
greenap.www.metlife.co.kr 2 2025-10-14 2025-10-14 nxdomain
greenus.www.metlife.co.kr 2 2025-10-14 2025-10-14 nxdomain
ppx.metlife.co.kr 1 2025-11-04 2025-11-04 ok

Programmatic access, with DNS A records: API GET /v1/hosts/metlife.co.kr (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/metlife.co.kr.