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.

51 hosts · 552 ms

HostCertsFirst seenLast seenDNS
lte-ml-1.ezweb.ne.jp 1 2026-03-02 2026-03-02 ok
station01.ezweb.ne.jp 4 2025-06-23 2026-09-12 ok
sdp01.ezweb.ne.jp 1 2026-02-20 2026-02-20 ok
sdpweb.ezweb.ne.jp 1 2026-02-20 2026-02-20 ok
station01-stg.ezweb.ne.jp 2 2025-06-23 2026-05-24 ok
mail.ezweb.ne.jp 1 2025-11-12 2025-11-12 ok
set.mail.ezweb.ne.jp 1 2026-03-02 2026-03-02 ok
wsv.mail.ezweb.ne.jp 1 2026-03-02 2026-03-02 ok
oputl.ezweb.ne.jp 2 2025-10-03 2026-09-02 ok
sputl.ezweb.ne.jp 2 2026-03-04 2026-09-02 ok
ivvm.ezweb.ne.jp 1 2025-11-10 2025-11-10 ok
dengon.ezweb.ne.jp 5 2025-11-04 2026-09-25 ok
disinfo.ezweb.ne.jp 5 2025-11-04 2026-09-25 ok
imap.ezweb.ne.jp 1 2026-04-21 2026-04-21 ok
m-scr4-op.ezweb.ne.jp 3 2025-10-09 2026-09-09 ok
o-scr-op.ezweb.ne.jp 3 2025-10-09 2026-09-09 ok
m-scr4-sp.ezweb.ne.jp 3 2025-10-09 2026-09-09 ok
o-scr-sp.ezweb.ne.jp 3 2025-10-09 2026-09-09 ok
cpo-scr-sp.ezweb.ne.jp 2 2025-08-19 2026-08-24 ok
smtp.ezweb.ne.jp 1 2026-04-21 2026-04-21 ok
mfilter.ezweb.ne.jp 3 2025-10-09 2026-09-09 ok
biz-mfilter.ezweb.ne.jp 1 2025-10-09 2025-10-09 nxdomain
mms.ezweb.ne.jp 1 2025-11-12 2025-11-12 ok
station01-ft.ezweb.ne.jp 2 2026-04-12 2026-09-12 ok
station01-stgft.ezweb.ne.jp 2 2025-06-23 2026-05-24 ok
m-scr4-op-test.ezweb.ne.jp 1 2026-02-12 2026-02-12 ok
o-scr-op-test.ezweb.ne.jp 1 2026-02-12 2026-02-12 ok
m-scr4-sp-test.ezweb.ne.jp 1 2026-02-12 2026-02-12 ok
o-scr-sp-test.ezweb.ne.jp 1 2026-02-12 2026-02-12 ok
sdp01test.ezweb.ne.jp 1 2026-01-07 2026-01-07 ok
sdpwebtest.ezweb.ne.jp 1 2026-01-07 2026-01-07 ok
lte-ml-1.xx.ezweb.ne.jp 1 2026-03-02 2026-03-02 ok
station01.xx.ezweb.ne.jp 2 2025-06-23 2026-05-24 ok
twfilter-pc.xx.ezweb.ne.jp 2 2026-01-08 2026-04-21 ok
mail.xx.ezweb.ne.jp 1 2026-01-20 2026-01-20 ok
set.mail.xx.ezweb.ne.jp 1 2026-05-01 2026-05-01 ok
wsv.mail.xx.ezweb.ne.jp 1 2026-05-01 2026-05-01 ok
oputl.xx.ezweb.ne.jp 3 2025-09-22 2026-08-27 ok
sputl.xx.ezweb.ne.jp 3 2026-02-04 2026-08-27 ok
ivvm.xx.ezweb.ne.jp 2 2025-09-24 2026-09-04 ok
imap.xx.ezweb.ne.jp 1 2025-12-10 2025-12-10 ok
m-scr4-op.xx.ezweb.ne.jp 3 2025-08-21 2026-07-22 ok
o-scr-op.xx.ezweb.ne.jp 3 2025-08-21 2026-07-22 ok
m-scr4-sp.xx.ezweb.ne.jp 3 2025-08-21 2026-07-22 ok
o-scr-sp.xx.ezweb.ne.jp 3 2025-08-21 2026-07-22 ok
cpo-scr-sp.xx.ezweb.ne.jp 1 2026-04-21 2026-04-21 ok
smtp.xx.ezweb.ne.jp 1 2025-12-10 2025-12-10 ok
mfilter.xx.ezweb.ne.jp 1 2025-08-21 2025-08-21 nxdomain
biz-mfilter.xx.ezweb.ne.jp 1 2025-08-21 2025-08-21 nxdomain
dengon-test.xx.ezweb.ne.jp 4 2025-09-30 2026-09-25 ok
disinfo-test.xx.ezweb.ne.jp 4 2025-09-30 2026-09-25 ok

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