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.

100 hosts (first page) · 439 ms

HostCertsFirst seenLast seenDNS
smtb.jp 2 2025-11-25 2026-05-12 ok
*.smtb.jp 2 2025-11-07 2025-12-24 —
dr-mail-1.smtb.jp 1 2026-02-19 2026-02-19 ok
SV01WPAP01.smtb.jp 3 2025-08-25 2026-08-27 —
SV01WTAP01.smtb.jp 2 2025-08-19 2026-08-24 —
svb70fdc01.smtb.jp 2 2025-12-10 2025-12-10 nxdomain
svb70fhc01.smtb.jp 4 2026-04-09 2026-09-25 nxdomain
svb70shc01.smtb.jp 4 2026-04-09 2026-09-25 nxdomain
svb70skc01.smtb.jp 4 2026-04-09 2026-09-25 nxdomain
dv01.smtb.jp 6 2026-02-27 2026-08-06 ok
dvw01.dv01.smtb.jp 1 2026-05-08 2026-05-08 ok
collabo02.dv01.smtb.jp 2 2026-03-13 2026-08-13 ok
direct2-itb2.dv01.smtb.jp 1 2026-08-03 2026-08-03 ok
lifeguidetestc2.dv01.smtb.jp 4 2026-02-23 2026-02-23 ok
www2.dv01.smtb.jp 3 2025-12-03 2025-12-17 ok
dvw03.dv01.smtb.jp 1 2026-05-08 2026-05-08 ok
dvw04.dv01.smtb.jp 1 2026-05-08 2026-05-08 ok
direct2-ita.dv01.smtb.jp 1 2026-08-03 2026-08-03 ok
app-ita.dv01.smtb.jp 1 2025-11-17 2025-11-17 ok
direct2-itb.dv01.smtb.jp 1 2026-08-03 2026-08-03 ok
direct-itb.dv01.smtb.jp 1 2026-01-22 2026-01-22 ok
ddc.dv01.smtb.jp 3 2026-05-17 2026-09-03 ok
lifeguidetestc.dv01.smtb.jp 4 2026-02-23 2026-02-23 ok
common-ekyc.dv01.smtb.jp 2 2025-07-02 2026-07-07 ok
*.home.lifeguide.dv01.smtb.jp 3 2025-07-11 2026-06-18 —
pre.dev-staging2.home.lifeguide.dv01.smtb.jp 3 2025-07-11 2026-06-18 nxdomain
pre.dev-staging3.home.lifeguide.dv01.smtb.jp 3 2025-07-11 2026-06-18 nxdomain
dev-staging.home.lifeguide.dv01.smtb.jp 4 2026-03-31 2026-08-31 ok
pre.dev-staging.home.lifeguide.dv01.smtb.jp 3 2025-07-11 2026-06-18 ok
life.dv01.smtb.jp 4 2026-02-24 2026-02-24 ok
www970i.dv01.smtb.jp 1 2025-11-26 2025-11-26 ok
urisai.dv01.smtb.jp 2 2025-08-29 2026-08-27 ok
densai.dv01.smtb.jp 1 2025-11-20 2025-11-20 ok
sv73xweb01k.dv01.smtb.jp 2 2025-06-09 2026-06-22 nxdomain
sv05clbe01k.dv01.smtb.jp 2 2025-08-25 2026-08-27 ok
sv05clbk01k.dv01.smtb.jp 3 2025-08-25 2026-08-27 nxdomain
sv05clbe02k.dv01.smtb.jp 2 2025-08-25 2026-08-27 ok
sv05clbk02k.dv01.smtb.jp 3 2025-08-25 2026-08-27 nxdomain
mail.dv01.smtb.jp 1 2026-02-27 2026-02-27 ok
dev-mail.dv01.smtb.jp 1 2026-02-19 2026-02-19 ok
collabo.dv01.smtb.jp 2 2026-03-13 2026-08-13 ok
exo.dv01.smtb.jp 1 2025-11-19 2025-11-19 nodata
mail.exo.dv01.smtb.jp 1 2025-11-19 2025-11-19 ok
oad-t.exo.dv01.smtb.jp 1 2025-12-12 2025-12-12 nodata
*.oad-t.exo.dv01.smtb.jp 1 2025-12-12 2025-12-12 —
sts.oad-t.exo.dv01.smtb.jp 1 2025-11-19 2025-11-19 ok
souzokuap.dv01.smtb.jp 3 2026-04-10 2026-10-05 ok
lifeplanmaster.dv01.smtb.jp 1 2026-07-15 2026-07-15 ok
devdenwa.shr.dv01.smtb.jp 1 2025-12-22 2025-12-22 nodata
devdenwa.api.shr.dv01.smtb.jp 1 2025-12-26 2025-12-26 nodata
souzokuap-s.dv01.smtb.jp 1 2026-02-16 2026-02-16 nxdomain
jabis.dv01.smtb.jp 3 2025-07-24 2026-07-21 nodata
www.jabis.dv01.smtb.jp 3 2025-07-24 2026-07-21 ok
sv00ymag-t00.pvt-aws.dv01.smtb.jp 4 2025-06-16 2026-09-26 nodata
sv974twa01.pvt-aws.dv01.smtb.jp 1 2025-12-19 2025-12-19 nxdomain
sv298raad01.pvt-aws.dv01.smtb.jp 1 2025-07-29 2025-07-29 nodata
verifycl01.pvt-aws.dv01.smtb.jp 5 2025-09-11 2026-09-28 nodata
sv01wtap01.pvt-aws.dv01.smtb.jp 1 2025-12-17 2025-12-17 nodata
sv00ymag-t01.pvt-aws.dv01.smtb.jp 1 2025-12-23 2025-12-23 nodata
sv00ymag-t11.pvt-aws.dv01.smtb.jp 3 2025-06-17 2026-09-30 nodata
sv335twv1.pvt-aws.dv01.smtb.jp 1 2025-09-26 2025-09-26 nxdomain
sv335xwv1.pvt-aws.dv01.smtb.jp 2 2026-04-21 2026-09-21 nodata
verifycl02.pvt-aws.dv01.smtb.jp 3 2025-09-11 2026-08-12 nodata
sv01wtap02.pvt-aws.dv01.smtb.jp 1 2025-12-17 2025-12-17 nodata
sv00ymag-t02.pvt-aws.dv01.smtb.jp 1 2025-12-23 2025-12-23 nodata
verifycl03.pvt-aws.dv01.smtb.jp 3 2025-09-11 2026-08-12 nodata
sv00ymag-t03.pvt-aws.dv01.smtb.jp 1 2025-12-23 2025-12-23 nodata
sv00ymag-t04.pvt-aws.dv01.smtb.jp 2 2025-06-17 2026-05-18 nodata
sv00ymag-t05.pvt-aws.dv01.smtb.jp 2 2025-06-17 2026-05-18 nodata
sv00ymag-t06.pvt-aws.dv01.smtb.jp 2 2025-06-17 2026-05-18 nodata
sv03v-ita-maintweb.pvt-aws.dv01.smtb.jp 2 2026-08-06 2026-08-06 nodata
sv03v-st-maintweb.pvt-aws.dv01.smtb.jp 2 2026-08-06 2026-08-06 nodata
sv72cncoweb-osk-v-alb.pvt-aws.dv01.smtb.jp 4 2025-06-25 2026-01-28 nodata
sv72cncoweb-tky-v-alb.pvt-aws.dv01.smtb.jp 6 2025-06-25 2026-01-28 nodata
sv00ymag-t00c.pvt-aws.dv01.smtb.jp 2 2025-06-17 2026-05-18 nodata
*.gobupoc.pvt-aws.dv01.smtb.jp 2 2026-01-09 2026-01-09 —
svc64dtb001.dsc.pvt-aws.dv01.smtb.jp 3 2026-03-18 2026-08-18 nodata
svf05apvd.pvt-aws.dv01.smtb.jp 1 2026-05-12 2026-05-12 nxdomain
rapid.ai.pvt-aws.dv01.smtb.jp 1 2026-08-06 2026-08-06 nodata
svc60-nodered-digi.pvt-aws.dv01.smtb.jp 1 2026-09-08 2026-09-08 nodata
svc60-nodered-mki.pvt-aws.dv01.smtb.jp 1 2026-09-08 2026-09-08 nodata
svc60-nodered-dckanri.pvt-aws.dv01.smtb.jp 1 2026-09-08 2026-09-08 nodata
svc43lbg01k.pvt-aws.dv01.smtb.jp 1 2026-06-23 2026-06-23 nxdomain
sv72cncoweb-osk.pvt-aws.dv01.smtb.jp 2 2026-02-03 2026-02-09 nodata
sv72cncoweb-osk-v-pl.pvt-aws.dv01.smtb.jp 4 2025-06-25 2026-01-28 nodata
sv72cncoweb-tky-v-pl.pvt-aws.dv01.smtb.jp 5 2025-06-25 2026-01-28 nodata
imarket-struct-web-dev.51m.pvt-aws.dv01.smtb.jp 6 2026-03-25 2026-08-25 nodata
svc60-nodered-malm.pvt-aws.dv01.smtb.jp 1 2026-09-08 2026-09-08 nodata
svc60-nodered-kojin.pvt-aws.dv01.smtb.jp 1 2026-09-08 2026-09-08 nodata
collabo.pvt-aws.dv01.smtb.jp 2 2025-07-23 2026-06-23 nodata
ita-mylifeplanner.pvt-aws.dv01.smtb.jp 3 2026-04-16 2026-09-16 nodata
st-mylifeplanner.pvt-aws.dv01.smtb.jp 3 2026-04-16 2026-09-16 nodata
*.dev.harbor.pvt-aws.dv01.smtb.jp 3 2025-07-06 2026-06-04 —
*.codeserver1.dev.harbor.pvt-aws.dv01.smtb.jp 1 2025-12-10 2025-12-10 —
*.azarea.dev.harbor.pvt-aws.dv01.smtb.jp 3 2026-04-23 2026-09-23 —
*.pre.azarea.dev.harbor.pvt-aws.dv01.smtb.jp 2 2026-08-21 2026-08-21 —
*.testing.azarea.dev.harbor.pvt-aws.dv01.smtb.jp 2 2026-08-21 2026-08-21 —
*.libra.dev.harbor.pvt-aws.dv01.smtb.jp 3 2025-07-30 2026-06-30 —
*.pre.libra.dev.harbor.pvt-aws.dv01.smtb.jp 2 2026-08-21 2026-08-21 —
*.training.libra.dev.harbor.pvt-aws.dv01.smtb.jp 1 2026-01-14 2026-01-14 —

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/smtb.jp.

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/smtb.jp.