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.

41 hosts · 211 ms

HostCertsFirst seenLast seenDNS
api-test2.smfg.co.jp 16 2025-12-23 2026-10-05 ok
*.api-test2.smfg.co.jp 14 2026-05-04 2026-10-05 —
api-tmp-test2.smfg.co.jp 1 2026-09-28 2026-09-28 ok
api.smfg.co.jp 16 2026-01-13 2026-09-28 ok
*.api.smfg.co.jp 14 2026-04-20 2026-09-02 —
stat-ssl.smfg.co.jp 5 2026-04-06 2026-09-22 ok
api-test2-origin.smfg.co.jp 1 2026-09-07 2026-09-07 nodata
alb-1.api-test2-origin.smfg.co.jp 1 2026-09-07 2026-09-07 nxdomain
alb-2.api-test2-origin.smfg.co.jp 1 2026-09-07 2026-09-07 nxdomain
api-test-origin.smfg.co.jp 1 2026-09-07 2026-09-07 ok
alb-1.api-test-origin.smfg.co.jp 1 2026-09-07 2026-09-07 nxdomain
alb-2.api-test-origin.smfg.co.jp 1 2026-09-07 2026-09-07 nxdomain
ZBXTYSKA0001.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
EVATYSWK0001.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
APXCTYS01.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
WSUSAPXOTYS01.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
ZBXTYSKA0002.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
EVATYSWK0002.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
EVATYSEK0003.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
EVATYSWK0003.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
EVATYSTM0003.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
EVATYSWK0004.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
EVATYSWK0005.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
build1008425.tys.smfg.co.jp 2 2025-07-03 2026-06-08 nxdomain
EVATYSWK0006.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
build1008426.tys.smfg.co.jp 2 2025-07-03 2026-06-08 nxdomain
EVATYSWK0007.tys.smfg.co.jp 2 2025-07-03 2026-06-08 —
SOM-COM-QA.tys.smfg.co.jp 2 2026-05-25 2026-06-08 —
APXCTYS01BMC.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
KYBAKTYS01BMC.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
WSUSAPXOTYS01BMC.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
KYBAKTYS11BMC.tys.smfg.co.jp 1 2026-01-26 2026-01-26 —
KYBAKTYS02BMC.tys.smfg.co.jp 1 2026-06-08 2026-06-08 —
KYBAKTYS12BMC.tys.smfg.co.jp 1 2026-01-26 2026-01-26 —
SOM-COM-DB-VIP.tys.smfg.co.jp 2 2026-05-25 2026-06-08 —
api-test.smfg.co.jp 17 2025-12-23 2026-09-28 ok
*.api-test.smfg.co.jp 14 2026-05-17 2026-09-20 —
api-tmp-test.smfg.co.jp 1 2026-09-28 2026-09-28 ok
www.smfg.co.jp 4 2025-08-26 2026-08-13 ok
test-www.smfg.co.jp 3 2025-08-26 2026-08-13 ok
shaka-kachi-collegesports-entry.smfg.co.jp 2 2025-06-17 2026-06-02 ok

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