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.

65 hosts · 336 ms

HostCertsFirst seenLast seenDNS
gmo-cybersecurity.com 2 2025-09-30 2026-01-05 ok
*.gmo-cybersecurity.com 1 2026-01-05 2026-01-05 —
dev-ad.adexpo2027.gmo-cybersecurity.com 2 2026-07-02 2026-07-02 ok
dev-org.adexpo2027.gmo-cybersecurity.com 2 2026-07-02 2026-07-02 ok
contracts.admin.soc.gmo-cybersecurity.com 5 2026-06-02 2026-09-30 ok
tma.id.gmo-cybersecurity.com 2 2026-03-01 2026-07-17 ok
stg.id.gmo-cybersecurity.com 1 2025-12-14 2025-12-14 ok
dev.id.gmo-cybersecurity.com 1 2025-11-21 2025-11-21 ok
nds-lite.gmo-cybersecurity.com 4 2026-05-26 2026-07-24 ok
*.nds-lite.gmo-cybersecurity.com 3 2026-05-26 2026-07-24 —
stg.nds-lite.gmo-cybersecurity.com 3 2026-06-18 2026-07-24 ok
*.stg.nds-lite.gmo-cybersecurity.com 2 2026-07-24 2026-07-24 —
*.preview.stg.nds-lite.gmo-cybersecurity.com 3 2026-06-18 2026-07-24 —
dev.nds-lite.gmo-cybersecurity.com 2 2026-06-08 2026-06-08 ok
*.preview.dev.nds-lite.gmo-cybersecurity.com 2 2026-06-08 2026-06-08 —
dev.spf.gmo-cybersecurity.com 2 2026-04-16 2026-05-19 nxdomain
*.dev.spf.gmo-cybersecurity.com 2 2026-04-16 2026-05-19 —
admin.dev.spf.gmo-cybersecurity.com 2 2026-04-16 2026-05-19 nxdomain
stg.gmo-cybersecurity.com 2 2026-03-21 2026-08-21 ok
lp-shindan.gmo-cybersecurity.com 4 2026-04-13 2026-09-20 ok
tma.shindan.gmo-cybersecurity.com 2 2026-03-04 2026-07-20 ok
web.shindan.gmo-cybersecurity.com 6 2026-04-26 2026-08-21 ok
api.web.shindan.gmo-cybersecurity.com 3 2026-05-03 2026-08-17 ok
stg.shindan.gmo-cybersecurity.com 1 2025-12-14 2025-12-14 ok
api.stg.shindan.gmo-cybersecurity.com 2 2026-03-22 2026-08-22 ok
swagger.stg.shindan.gmo-cybersecurity.com 2 2026-03-08 2026-07-24 ok
banner.stg.shindan.gmo-cybersecurity.com 2 2026-03-23 2026-08-23 ok
api.shindan.gmo-cybersecurity.com 3 2026-04-19 2026-09-19 ok
api.rakuten.shindan.gmo-cybersecurity.com 1 2025-06-10 2025-06-10 servfail
admin.shindan.gmo-cybersecurity.com 1 2025-11-24 2025-11-24 ok
stg.admin.shindan.gmo-cybersecurity.com 1 2025-11-21 2025-11-21 ok
api.stg.admin.shindan.gmo-cybersecurity.com 1 2025-11-21 2025-11-21 ok
api.admin.shindan.gmo-cybersecurity.com 1 2025-11-24 2025-11-24 ok
dev.admin.shindan.gmo-cybersecurity.com 1 2025-11-07 2025-11-07 ok
api.dev.admin.shindan.gmo-cybersecurity.com 1 2025-11-19 2025-11-19 ok
api.staging.asset-finder.shindan.gmo-cybersecurity.com 3 2026-05-07 2026-08-25 ok
api.asset-finder.shindan.gmo-cybersecurity.com 4 2026-04-20 2026-09-30 ok
banner.shindan.gmo-cybersecurity.com 2 2026-03-26 2026-08-26 ok
util.cs.shindan.gmo-cybersecurity.com 6 2026-05-20 2026-09-16 ok
aiwh-assets.shindan.gmo-cybersecurity.com 2 2026-08-24 2026-08-24 ok
dev.shindan.gmo-cybersecurity.com 1 2025-11-26 2025-11-26 ok
web-dev.shindan.gmo-cybersecurity.com 16 2026-04-19 2026-10-04 ok
*.web-dev.shindan.gmo-cybersecurity.com 8 2026-04-19 2026-10-04 —
api.web-dev.shindan.gmo-cybersecurity.com 3 2026-04-29 2026-08-16 ok
dict.web-dev.shindan.gmo-cybersecurity.com 3 2026-04-29 2026-08-16 ok
dev-pjt.web-dev.shindan.gmo-cybersecurity.com 5 2026-04-16 2026-09-22 ok
netbird.dev-pjt.web-dev.shindan.gmo-cybersecurity.com 3 2026-06-09 2026-08-08 ok
api.dev-pjt.web-dev.shindan.gmo-cybersecurity.com 5 2026-04-16 2026-09-22 ok
dict.dev-pjt.web-dev.shindan.gmo-cybersecurity.com 5 2026-04-16 2026-09-22 ok
api.dev.shindan.gmo-cybersecurity.com 1 2025-11-26 2025-11-26 ok
managekun.gmo-cybersecurity.com 3 2026-05-08 2026-08-27 ok
stg-managekun.gmo-cybersecurity.com 4 2026-05-04 2026-08-19 ok
go.gmo-cybersecurity.com 10 2026-04-29 2026-09-26 ok
ierae-logger.gmo-cybersecurity.com 8 2026-06-02 2026-10-02 nodata
*.ierae-logger.gmo-cybersecurity.com 8 2026-06-02 2026-10-02 —
waas.gmo-cybersecurity.com 1 2025-08-04 2025-08-04 ok
staging.product.gmo-cybersecurity.com 4 2026-06-22 2026-07-14 ok
stg.product.gmo-cybersecurity.com 2 2025-07-07 2026-06-07 ok
net-de-shindan.product.gmo-cybersecurity.com 2 2025-07-01 2026-06-01 ok
stg.net-de-shindan.product.gmo-cybersecurity.com 4 2025-09-03 2026-08-04 ok
dev.product.gmo-cybersecurity.com 5 2026-04-28 2026-10-04 ok
managekun-adv.gmo-cybersecurity.com 3 2026-05-06 2026-08-21 ok
candidate.dev.gmo-cybersecurity.com 1 2026-07-13 2026-07-13 nxdomain
design.dev.gmo-cybersecurity.com 2 2026-08-30 2026-08-30 ok
ir.dev.gmo-cybersecurity.com 1 2026-10-04 2026-10-04 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/gmo-cybersecurity.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/gmo-cybersecurity.com.