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.

81 hosts · 370 ms

HostCertsFirst seenLast seenDNS
matsui.co.jp 7 2025-10-23 2026-09-23 ok
*.matsui.co.jp 4 2025-10-23 2026-09-23 —
nshs01.matsui.co.jp 4 2025-07-20 2026-08-03 ok
adebis8628.matsui.co.jp 2 2026-04-11 2026-09-11 ok
sjmbua.matsui.co.jp 4 2026-05-06 2026-09-15 ok
us-marketlab.matsui.co.jp 1 2026-05-11 2026-05-11 ok
stg-us-marketlab.matsui.co.jp 1 2026-05-11 2026-05-11 ok
spweb.matsui.co.jp 2 2025-08-24 2026-07-25 ok
lb-spweb.matsui.co.jp 2 2025-08-26 2026-07-27 ok
stg.spweb.matsui.co.jp 2 2025-08-10 2026-07-11 ok
lb-stg.spweb.matsui.co.jp 2 2025-08-12 2026-07-13 ok
marketweb.matsui.co.jp 1 2025-10-16 2025-10-16 ok
stg-marketweb.matsui.co.jp 1 2026-05-25 2026-05-25 ok
alb-front.stg-marketweb.matsui.co.jp 1 2026-02-02 2026-02-02 ok
alb-front.marketweb.matsui.co.jp 2 2025-08-13 2026-07-14 ok
feed.matsui.co.jp 3 2025-10-01 2026-09-18 ok
lb-feed.matsui.co.jp 2 2026-03-13 2026-07-29 ok
fund.matsui.co.jp 4 2026-01-20 2026-02-13 ok
stg-a.fund.matsui.co.jp 6 2025-07-30 2026-07-31 ok
stg-c.fund.matsui.co.jp 6 2025-07-30 2026-07-31 ok
board.matsui.co.jp 2 2025-07-19 2026-06-17 ok
vdia-conn01.msd.matsui.co.jp 3 2025-12-12 2025-12-14 nxdomain
vdib-conn01.msd.matsui.co.jp 1 2026-05-15 2026-05-15 nxdomain
matai-prd.msd.matsui.co.jp 1 2026-05-07 2026-05-07 nodata
matai-stg.msd.matsui.co.jp 4 2026-01-28 2026-08-11 nodata
finance.matsui.co.jp 4 2025-09-10 2026-09-14 ok
*.finance.matsui.co.jp 2 2026-02-25 2026-07-28 —
stg.finance.matsui.co.jp 1 2025-07-31 2025-07-31 ok
*.stg.finance.matsui.co.jp 1 2025-07-31 2025-07-31 —
dev.finance.matsui.co.jp 1 2025-10-19 2025-10-19 ok
*.dev.finance.matsui.co.jp 1 2025-10-19 2025-10-19 —
trade.matsui.co.jp 3 2025-10-01 2026-09-18 ok
lb-trade.matsui.co.jp 2 2026-03-13 2026-07-29 ok
movie.matsui.co.jp 5 2026-04-28 2026-08-26 ok
share.matsui.co.jp 1 2025-10-14 2025-10-14 ok
marketapi.matsui.co.jp 1 2025-10-16 2025-10-16 ok
stg-marketapi.matsui.co.jp 1 2026-05-25 2026-05-25 ok
mail-click.matsui.co.jp 2 2025-09-03 2026-08-04 ok
realstock.matsui.co.jp 1 2026-02-04 2026-02-04 ok
lb-realstock.matsui.co.jp 1 2026-02-04 2026-02-04 ok
stg.realstock.matsui.co.jp 1 2025-12-14 2025-12-14 ok
lb-stg.realstock.matsui.co.jp 1 2025-12-15 2025-12-15 ok
push.realstock.matsui.co.jp 1 2026-02-03 2026-02-03 ok
lb-push.realstock.matsui.co.jp 1 2026-02-04 2026-02-04 ok
stg.push.realstock.matsui.co.jp 1 2025-12-14 2025-12-14 ok
lb-stg.push.realstock.matsui.co.jp 1 2025-12-15 2025-12-15 ok
usstock.matsui.co.jp 2 2025-08-21 2026-09-03 ok
stg-usstock.matsui.co.jp 2 2025-08-21 2026-09-03 ok
mng.stg-usstock.matsui.co.jp 3 2025-08-21 2026-09-03 ok
alb-front.stg-usstock.matsui.co.jp 2 2025-10-01 2026-09-01 ok
apigw.stg-usstock.matsui.co.jp 2 2025-12-26 2026-01-05 ok
passkey.stg-usstock.matsui.co.jp 2 2026-01-08 2026-01-08 ok
front-passkey.stg-usstock.matsui.co.jp 1 2026-01-08 2026-01-08 nxdomain
front.passkey.stg-usstock.matsui.co.jp 1 2026-01-08 2026-01-08 ok
mng.usstock.matsui.co.jp 2 2025-08-21 2026-09-03 ok
alb-front.usstock.matsui.co.jp 1 2026-05-08 2026-05-08 ok
exta.deal.matsui.co.jp 3 2026-02-12 2026-02-16 ok
extb.deal.matsui.co.jp 1 2026-04-23 2026-04-23 ok
extc.deal.matsui.co.jp 2 2026-02-20 2026-02-20 ok
om.deal.matsui.co.jp 1 2025-12-23 2025-12-23 ok
www.deal.matsui.co.jp 3 2026-02-12 2026-02-16 ok
www.opdeal.matsui.co.jp 2 2026-02-20 2026-02-20 ok
s.matsui.co.jp 3 2026-05-29 2026-08-06 ok
pocket.matsui.co.jp 1 2026-02-13 2026-02-13 ok
lb-pocket.matsui.co.jp 1 2026-02-14 2026-02-14 ok
stg.pocket.matsui.co.jp 2 2025-06-22 2026-05-22 ok
lb-stg.pocket.matsui.co.jp 2 2025-06-23 2026-05-23 ok
account.matsui.co.jp 3 2025-12-04 2025-12-04 ok
id.account.matsui.co.jp 2 2026-01-09 2026-01-09 ok
a8clk.account.matsui.co.jp 7 2026-05-18 2026-09-14 ok
ideco.account.matsui.co.jp 5 2026-03-09 2026-09-02 ok
support.matsui.co.jp 3 2025-09-01 2026-08-25 ok
board.dev.matsui.co.jp 2 2025-07-19 2026-06-17 ok
next-push.dev.matsui.co.jp 3 2025-10-01 2026-09-18 ok
lb-next-push.dev.matsui.co.jp 2 2025-06-23 2026-05-23 ok
next.dev.matsui.co.jp 3 2025-10-01 2026-09-18 ok
lb-next.dev.matsui.co.jp 2 2025-06-23 2026-05-23 ok
www.matsui.co.jp 4 2025-08-21 2026-08-21 ok
forex.matsui.co.jp 7 2025-09-22 2026-08-27 ok
stg.forex.matsui.co.jp 6 2025-09-22 2026-07-01 ok
om-fx.matsui.co.jp 1 2025-12-23 2025-12-23 ok

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