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.

96 hosts · 291 ms

HostCertsFirst seenLast seenDNS
cloudec.jp 4 2026-06-23 2026-09-23 ok
demo.reserve.cloudec.jp 2 2026-08-14 2026-08-14 ok
stg.cloudec.jp 3 2026-06-24 2026-09-24 ok
www.stg.cloudec.jp 3 2026-06-24 2026-09-24 ok
sample.ai-agent.dev-platform.cloudec.jp 3 2026-07-12 2026-09-09 ok
cec-cms-test.front.dev-platform.cloudec.jp 1 2025-12-18 2025-12-18 ok
*.phase20.platform.cloudec.jp 4 2025-07-10 2026-06-10 —
*.fargate21.platform.cloudec.jp 4 2025-10-29 2026-09-29 —
*.testproxy1.platform.cloudec.jp 2 2025-11-21 2025-11-21 —
image.testproxy1.platform.cloudec.jp 2 2025-08-24 2026-07-25 ok
*.colystg2.platform.cloudec.jp 7 2026-07-22 2026-07-31 —
*.housefoods2.platform.cloudec.jp 5 2026-03-31 2026-09-08 —
*.xyzv2.platform.cloudec.jp 2 2026-03-06 2026-07-22 —
*.testproxy2.platform.cloudec.jp 2 2025-11-21 2025-11-21 —
image.testproxy2.platform.cloudec.jp 2 2025-08-26 2026-07-27 ok
*.housefoods3.platform.cloudec.jp 4 2026-04-02 2026-09-08 —
*.testproxy3.platform.cloudec.jp 2 2025-11-21 2025-11-21 —
image.testproxy3.platform.cloudec.jp 1 2025-11-16 2025-11-16 ok
news-image.testproxy3.platform.cloudec.jp 2 2025-07-24 2026-06-24 ok
*.housefoods4.platform.cloudec.jp 4 2026-04-02 2026-09-07 —
*.testproxy4.platform.cloudec.jp 2 2025-11-21 2025-11-21 —
image.testproxy4.platform.cloudec.jp 1 2025-12-05 2025-12-05 ok
*.housefoods5.platform.cloudec.jp 4 2026-04-02 2026-09-07 —
*.testproxy5.platform.cloudec.jp 2 2026-05-14 2026-05-14 —
*.housefoods6.platform.cloudec.jp 4 2026-04-02 2026-09-07 —
*.chac.platform.cloudec.jp 7 2026-02-23 2026-09-14 —
*.aipoc.platform.cloudec.jp 4 2026-09-15 2026-09-15 —
*.freestd.platform.cloudec.jp 2 2026-01-19 2026-01-19 —
devtemplate.platform.cloudec.jp 1 2025-06-18 2025-06-18 nxdomain
*.osg.platform.cloudec.jp 2 2026-02-16 2026-02-17 —
*.chacstg.platform.cloudec.jp 7 2026-02-23 2026-09-14 —
*.osgstg.platform.cloudec.jp 2 2026-02-16 2026-02-17 —
*.toyotaunistg.platform.cloudec.jp 6 2025-06-09 2026-07-06 —
*.skjstg.platform.cloudec.jp 7 2025-08-06 2026-09-20 —
*.sskstg.platform.cloudec.jp 6 2026-02-25 2026-09-19 —
*.usenstg.platform.cloudec.jp 3 2025-11-25 2026-02-13 —
*.colystg.platform.cloudec.jp 4 2026-01-05 2026-07-18 —
*.pci.platform.cloudec.jp 4 2025-06-18 2026-05-19 —
*.chunichi.platform.cloudec.jp 4 2025-10-10 2026-09-10 —
*.toyotauni.platform.cloudec.jp 6 2025-06-09 2026-07-06 —
*.skj.platform.cloudec.jp 7 2025-08-06 2026-09-20 —
*.gsj.platform.cloudec.jp 8 2025-09-26 2026-08-27 —
*.ibank.platform.cloudec.jp 6 2025-09-17 2026-08-18 —
*.nok.platform.cloudec.jp 2 2025-12-03 2025-12-04 —
*.jrk.platform.cloudec.jp 4 2026-03-08 2026-07-24 —
*.ssk.platform.cloudec.jp 7 2026-02-25 2026-09-19 —
*.usen.platform.cloudec.jp 3 2025-11-25 2026-02-13 —
*.jetro.platform.cloudec.jp 4 2025-11-18 2026-07-07 —
*.sapbeer.platform.cloudec.jp 6 2026-03-09 2026-08-09 —
*.mvwalker.platform.cloudec.jp 4 2025-12-19 2026-07-08 —
*.sales.platform.cloudec.jp 4 2025-06-18 2026-05-19 —
*.kenzoest.platform.cloudec.jp 2 2026-09-29 2026-09-29 —
cec-cms-test.platform.cloudec.jp 2 2025-10-09 2026-09-09 ok
develop.template.dev.platform.cloudec.jp 1 2025-06-17 2025-06-17 servfail
*.chunichiph2dev.platform.cloudec.jp 2 2026-05-29 2026-05-29 —
*.sskph2dev.platform.cloudec.jp 2 2026-09-29 2026-09-29 —
*.usenph2dev.platform.cloudec.jp 2 2026-07-14 2026-07-14 —
*.mvwalkerph2dev.platform.cloudec.jp 2 2026-06-12 2026-06-12 —
*.gsj2dev.platform.cloudec.jp 4 2025-10-31 2026-10-01 —
*.ibank2dev.platform.cloudec.jp 4 2025-09-05 2026-08-06 —
*.jrk2dev.platform.cloudec.jp 4 2026-03-05 2026-07-21 —
*.kenzoest2dev.platform.cloudec.jp 2 2025-11-10 2025-11-10 —
*.sapbeermigdev.platform.cloudec.jp 2 2026-05-13 2026-05-13 —
*.chunichidev.platform.cloudec.jp 4 2026-04-12 2026-09-12 —
*.gsjdev.platform.cloudec.jp 4 2025-07-29 2026-06-29 —
*.nokdev.platform.cloudec.jp 4 2026-04-01 2026-09-01 —
*.medipaldev.platform.cloudec.jp 5 2026-04-21 2026-09-21 —
*.usendev.platform.cloudec.jp 4 2025-07-16 2026-06-16 —
*.itoyokadodev.platform.cloudec.jp 2 2026-02-16 2026-02-16 —
*.yaokodev.platform.cloudec.jp 2 2025-09-24 2025-09-24 —
*.helpodev.platform.cloudec.jp 2 2025-11-06 2025-11-06 —
*.jetrodev.platform.cloudec.jp 5 2025-09-08 2026-08-09 —
*.sapbeerdev.platform.cloudec.jp 2 2025-11-10 2025-11-10 —
*.mvwalkerdev.platform.cloudec.jp 4 2025-08-04 2026-07-05 —
*.tokyointdev.platform.cloudec.jp 6 2026-04-13 2026-09-13 —
*.kenzoestdev.platform.cloudec.jp 2 2025-08-22 2025-08-22 —
*.coly.platform.cloudec.jp 4 2026-01-05 2026-07-18 —
go.cloudec.jp 9 2026-04-20 2026-09-17 ok
voxprd.cms.cloudec.jp 1 2026-01-12 2026-01-12 nxdomain
new-wp-ercuisraynaud.cms.cloudec.jp 1 2025-12-17 2025-12-17 ok
new-wp-asaokaspice.cms.cloudec.jp 1 2025-12-17 2025-12-17 ok
new-wp-voxspice.cms.cloudec.jp 1 2025-12-17 2025-12-17 ok
new-wp-everyhouse.cms.cloudec.jp 1 2025-12-17 2025-12-17 ok
new-wp-housedirect.cms.cloudec.jp 1 2025-12-17 2025-12-17 ok
voxdev.cms.cloudec.jp 1 2025-11-11 2025-11-11 nodata
houw.cms.cloudec.jp 1 2025-10-28 2025-10-28 nodata
*.front.cloudec.jp 112 2025-06-09 2026-10-05 —
*.usen-ph2-stg.front.cloudec.jp 3 2026-09-15 2026-09-15 —
*.sales.front.cloudec.jp 2 2025-07-22 2026-06-22 —
*.pvt.front.cloudec.jp 4 2025-10-02 2026-09-02 —
*.takeout.cloudec.jp 9 2026-03-22 2026-08-26 —
genki-gdc.takeout.cloudec.jp 1 2026-08-03 2026-08-03 ok
stg2-genki-gdc.takeout.cloudec.jp 1 2026-07-07 2026-07-07 ok
prd-genki-gdc.takeout.cloudec.jp 1 2026-07-27 2026-07-27 nxdomain
stg-genki-gdc.takeout.cloudec.jp 1 2026-06-11 2026-06-11 ok
www.cloudec.jp 4 2026-06-23 2026-09-23 ok

Programmatic access, with DNS A records: API GET /v1/hosts/cloudec.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/cloudec.jp.